This photograph by Marion S. Trikosko captures President Jimmy Carter arriving at Camp David in Catoctin Mountain Park, Maryland on November 23, 1979. Accompanying President Carter on the helicopter trip from the White House to Camp David was, from left to right, Secretary of Defense Harold Brown, Secretary of State Cyrus R. Vance, and Vice President Walter F. Mondale. The group was on hand to meet and discuss the Iran Hostage Crisis, which began earlier that month, on November 4. The hostages would be held for 444 days, until January 20, 1981. Camp David was established by President Franklin D. Roosevelt, then called Shangri-La, as a presidential retreat. President Dwight D. Eisenhower renamed the retreat Camp David after his grandson, David Eisenhower.

This photograph is of the Carter family rafting down the Salmon River in Idaho on August 23, 1978. In the raft are President Jimmy Carter (standing at left), First Lady Rosalynn Carter (seated, left, with sunglasses), and daughter Amy (seated at left in the front). The family rafted the Middle Fork of the Salmon River as part of a vacation out west that also included a stay in Wyoming and the Grand Tetons.

This photograph of President George W. Bush greeting firefighters, police, and rescue personnel was taken by Eric Draper on September 14, 2001 in New York City. President Bush visited the first responders to the September 11, 2001 terrorist attacks on the World Trade Center, meeting the group at what was coined Ground Zero of the horrific events that occurred just days before. Bush toured Ground Zero and gave a speech offering support to the first responders.

This photograph of First Lady Pat Nixon was taken on February 22, 1972, during President Richard M. Nixon's historic visit to the People's Republic of China. Mrs. Nixon is captured speaking to American reporter Barbara Walters outside the Peking Hotel. President Nixon's trip was the first time an American president had taken part in a State Visit to China.

In this photograph by Pete Souza, First Lady Michelle Obama meets soccer superstar David Beckham at a dinner hosted by Mrs. Obama and her husband, President Barack Obama, at Winfield House in London, England on May 25, 2011. Winfield House is the residence of the United States ambassador to the United Kingdom of Great Britain and Northern Ireland. President and Mrs. Obama hosted the dinner in honor of Queen Elizabeth II of Great Britain and Prince Philip, Duke of Edinburgh (pictured next to Mrs. Obama) following a State Banquet hosted by the royal couple at Buckingham Palace the previous evening. The two dinners were a part of President Obama's two day State Visit to the United Kingdom.

In this photograph by Pete Souza, President Barack Obama watches the United States Men's National Soccer team play Ghana in the FIFA Men's World Cup on June 26, 2010. President Obama watched the game from a room at the Intercontinental Hotel in Toronto, Canada during the G20 Summit. The United States played Ghana in the knockout stage, ultimately losing 1-2 to the African nation.

In this photograph by David Lienemann, Vice President Joseph R. Biden, Jr. cheers on the United States Women's National Soccer team as they compete in the FIFA Women's World Cup final on July 5, 2015. The United States women's team beat Japan 5-2 for their third World Cup title. Vice President Biden was joined at the game by (from left to right): Sasha Obama, youngest daughter of President Barack Obama and First Lady Michelle Obama, his granddaughter Maisy Biden, and granddaughter Natalie Biden.

In this photograph taken by Bryon E. Schumaker, First Lady Pat Nixon, Chinese interpreters, officials, and the press watch a panda inside an enclosure at the Beijing Zoo (also known as the Peking Zoo) on February 22, 1972. The trip to the zoo was part of the Nixons' State Visit to the People's Republic of China.

In this photograph taken by Bryon E. Schumaker, First Lady Pat Nixon, Chinese interpreters, officials, and the press watch a panda inside an enclosure at the Beijing Zoo (also known as the Peking Zoo) on February 22, 1972. The trip to the zoo was part of the Nixons' State Visit to the People's Republic of China.

In this photograph taken by Bryon E. Schumaker, First Lady Pat Nixon, Chinese interpreters, officials, and the press watch a panda inside an enclosure at the Beijing Zoo (also known as the Peking Zoo) on February 22, 1972. The trip to the zoo was part of the Nixons' State Visit to the People's Republic of China.

This photograph was taken during President Calvin Coolidge's vacation in Black Hills, South Dakota in the summer of 1927. Coolidge stands in the center of the photograph dressed as a cowboy, flanked on both sides by press photographers. The president received the Western-style hat and cowboy boots as gifts during his tour. Coolidge chose to vacation in the Black Hills following a campaign by South Dakotans designed to appeal to the president's love of trout fishing. The president's visit brought a boon to the tourism and infrastructure to the area. During his vacation, Coolidge delivered remarks at the dedication of the start of work on the Mount Rushmore National Memorial and visited Pine Ridge, a tribal reservation of the Lakota people.

In this photograph, taken by Kimberlee Hewitt on September 10, 2006, President George W. Bush and First Lady Laura Welch Bush participate in a wreath-laying ceremony at the north reflecting pool at the former site of the World Trade Center in New York, New York. President and Mrs. Bush paid their respects at the site to commemorate the fifth anniversary of the terrorist attacks that destroyed the twin towers of the World Trade Center on September 11, 2001. The National September 11 Memorial was later built on the site and dedicated on September 11, 2011. In May 2014, an adjacent museum was opened and dedicated by President Barack Obama.

In this photograph, President George W. Bush delivers a speech during the dedication ceremony for the National 9/11 Pentagon Memorial in Arlington, Virginia on the seventh anniversary of the terrorist attacks against the United States on September 11, 2001. Former Secretary of Defense Donald Rumsfeld can be seen seated behind the president. Designed by Julie Beckman and Keith Kaseman, the memorial honors the 184 victims who perished when the hijacked aircraft American Airlines Flight 77 crashed into the west side of the Pentagon. The outdoor memorial identifies victims by name and age, and includes illuminated water features to represent each victim. In 2002, President Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President George W. Bush and First Lady Laura Welch Bush participate in a wreath-laying ceremony near the crash site for United Airlines Flight 93 in Somerset County, Pennsylvania, on the first anniversary of the terrorist attacks against the United States on September 11, 2001. Flight 93 was one of four airplanes hijacked by al-Qaida terrorists on September 11, 2001. Believed to be targeting the United States Capitol Building, the flight crashed into a field after passengers and crew attempted to regain control of the aircraft. Preliminary work for the Flight 93 National Memorial was completed on September 10, 2010, and the permanent memorial opened to the public on September 10, 2015. In 2002, President Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President George W. Bush delivers remarks from Emma E. Brooker Elementary School in Sarasota, Florida, following the terrorist attacks on the World Trade Center in New York city on the morning of September 11, 2001. The president was informed by his chief of staff Andy Card of the second strike on the towers while reading to children at the school. After delivering brief remarks at the school, Bush boarded Air Force One for his own protection, accompanied by roughly 65 advisors, security agents, and staff members. For the next several hours, President Bush worked from his office aboard Air Force One, where he monitored the crisis using the secure phone lines and televisions installed in the aircraft.

In this photograph, President George W. Bush participates in a reading demonstration with second grade teacher Sandra Kay Daniels at Emma E. Brooker Elementary School in Sarasota, Florida on the morning of September 11, 2001. The president participated in the reading demonstration to raise support for his "No Child Left Behind" nationwide educational initiative. During the demonstration, President Bush was informed by chief of staff Andy Card of the second strike on the World Trade Center in New York City. After delivering brief remarks at the school, Bush boarded Air Force One for his own protection, accompanied by roughly 65 advisors, security agents, and staff members. For the next several hours, President Bush worked from his office aboard Air Force One, where he monitored the crisis using the secure phone lines and televisions installed in the aircraft.

In this photograph, taken by Andrea Hanks on September 11, 2019, President Donald Trump and First Lady Melania Trump observe a moment of silence during the September 11th Observance Ceremony at the Pentagon in Arlington, Virginia. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, taken by Andrea Hanks on September 11, 2019, President Donald Trump and First Lady Melania Trump participate in a wreath-laying ceremony with Secretary of Defense Mark Esper, his wife Leah Esper, the Chairman of the Joint Chiefs of Staff Gen. Joseph Dunford and his wife Ellyn Dunford during the September 11th Observance Ceremony at the Pentagon in Arlington, Virginia. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, taken by Pete Souza on September 11, 2014, President Barack Obama listens to the national anthem with Defense Secretary Chuck Hagel and Gen. Martin Dempsey, chairman of the Joint Chiefs of Staffs, during the September 11th Observance Ceremony at the National 9/11 Pentagon Memorial in Arlington, Virginia. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President Barack Obama, First Lady Michelle Obama, former President George W. Bush, and former First Lady Laura Welch Bush listen to a speaker during the dedication ceremony for the National September 11 Memorial in New York, New York, on September 11, 2011. The dedication ceremony was held in commemoration of the tenth anniversary of the terrorist attacks against the United States on September 11, 2001. Located at the former site of the World Trade Center, the memorial features reflecting pools bearing the names of the victims of the September 11th terrorist attacks and the 1993 World Trade Center bombings. In May 2014, an adjacent museum was opened and dedicated by President Barack Obama. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President Barack Obama greets guests at the Pentagon during a ceremony commemorating the tenth anniversary of the terrorist attacks against the United States on September 11, 2001. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President Barack Obama and First Lady Michelle Obama join former President George W. Bush and former First Lady Laura Welch Bush for the dedication of the National September 11 Memorial in New York, New York, on September 11, 2011. The dedication ceremony was held in commemoration of the tenth anniversary of the terrorist attacks against the United States on September 11, 2001. Located at the former site of the World Trade Center, the memorial features reflecting pools bearing the names of the victims of the September 11th terrorist attacks and the 1993 World Trade Center bombings. In May 2014, an adjacent museum was opened and dedicated by President Barack Obama. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President Barack Obama and First Lady Michelle Obama join former President George W. Bush and former First Lady Laura Welch Bush for the dedication of the National September 11 Memorial in New York, New York, on September 11, 2011. The dedication ceremony was held in commemoration of the tenth anniversary of the terrorist attacks against the United States on September 11, 2001. Located at the former site of the World Trade Center, the memorial features reflecting pools bearing the names of the victims of the September 11th terrorist attacks and the 1993 World Trade Center bombings. In May 2014, an adjacent museum was opened and dedicated by President Barack Obama. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President Barack Obama and First Lady Michelle Obama join former President George W. Bush and former First Lady Laura Welch Bush to greet family members and local dignitaries in advance of the dedication of the National September 11 Memorial in New York, New York, on September 11, 2011. The dedication ceremony was held in commemoration of the tenth anniversary of the terrorist attacks against the United States on September 11, 2001. Located at the former site of the World Trade Center, the memorial features reflecting pools bearing the names of the victims of the September 11th terrorist attacks and the 1993 World Trade Center bombings. In May 2014, an adjacent museum was opened and dedicated by President Barack Obama. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.

In this photograph, President Barack Obama and First Lady Michelle Obama visit the crash site for United Airlines Flight 93 following a ceremony at the Flight 93 National Memorial in Somerset County, Pennsylvania, on the tenth anniversary of the terrorist attacks against the United States on September 11, 2001. Flight 93 was one of four airplanes hijacked by al-Qaida terrorists on September 11, 2001. Believed to be targeting the United States Capitol Building, the flight crashed into a field after passengers and crew attempted to regain control of the aircraft. Preliminary work for the Flight 93 National Memorial was completed on September 10, 2010, and the permanent memorial opened to the public on September 10, 2015. In 2002, President George W. Bush designated September 11th as Patriot Day, a time that has been recognized through presidential proclamations as a national day of remembrance, prayer, and service. Presidents and first ladies typically commemorate the day through moment of silence observations on the White House South Lawn, and by attending remembrance ceremonies at sites affected by the terrorist attacks.