Photos, Videos Capture Pope's Historic Visit To The U.S.

White House Welcome Ceremony

Live Stream: Pope Francis participates in a welcome ceremony at the White House.

Behind The Scenes - Preparing For The Pope

The White House released a behind the scenes video on what it's like to prepare for a papal visit. 

US Secretary of State (C) greets clergy as US Vice President Joe Biden (R) looks on before the arrival of Pope Francis at the White House on September 23, 2015 in Washington,DC. President Barack Obama will host Pope Francis at the White House for the first time Wednesday, warmly embracing the Catholic pontiff seen as both a moral authority and potent political ally. AFP PHOTO / VINCENZO PINTO (Photo credit should read VINCENZO PINTO/AFP/Getty Images)

Spectators hoping for a glimpse of Pope Francis crowd the South Lawn of the White House in Washington, Wednesday, Sept. 23, 2015, before the official state arrival ceremony where President Barack Obama will welcome the pope. (AP Photo/Pablo Martinez Monsivais)

Spectators hoping for a glimpse of Pope Francis waves Papal and U.S. Flags on the South Lawn of the White House in Washington, Wednesday, Sept. 23, 2015, before the official state arrival ceremony where President Barack Obama will welcome the pope. (AP Photo/Pablo Martinez Monsivais)

Members of the armed services carry U.S. and Vatican flags into the White House in Washington, Wednesday, Sept. 23, 2015, for the upcoming visit by Pope Francis. (AP Photo/Alex Brandon/Pool)

A woman holds an image of the Virgin Mary as she and others gather on Pope Francis parade route along the Ellipse near the White House in Washington, Wednesday, Sept. 23, 2015. (AP Photo/Carolyn Kaster)

The Flag of Vatican City (Papal flag) is displayed next to the American flag on the side of the Old Executive Office Building on the White House complex in Washington, Tuesday, Sept. 22, 2015, the day Pope Francis arrives in the United States. (AP Photo/Andrew Harnik)

Workers prepare the South Lawn of the White House in Washington, Tuesday, Sept. 22, 2015, the day before Pope Francis visits the White House.(AP Photo/Andrew Harnik)

JOINT BASE ANDREWS, MD - SEPTEMBER 22: Pope Francis waves from the back of his Fiat after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as pope. (Photo by Chip Somodevilla/Getty Images)

JOINT BASE ANDREWS, MD - SEPTEMBER 22: (AFP OUT) Pope Francis departs in a Fiat after arriving from Cuba to the United States September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Olivier Douliery-Pool/Getty Images)

JOINT BASE ANDREWS, MD - SEPTEMBER 22: Supporters cheer for Pope Francis after he arrived from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Chip Somodevilla/Getty Images)

JOINT BASE ANDREWS, MD - SEPTEMBER 22: (EDITORS NOTE: Retransmission with alternate crop) Pope Francis (L) is escorted by U.S. President Barack Obama as he greets and other political and Catholic church leaders after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Chip Somodevilla/Getty Images)

Pope Francis greets children alongside US President Barack Obama and First Lady Michelle Obama upon arrival at Andrews Air Force Base in Maryland, September 22, 2015, on the start of a 3-day trip to Washington. AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

Pope Francis (L) walks alongside US President Barack Obama (C) and US First Lady Michelle Obama (R) upon arrival at Andrews Air Force Base in Maryland, September 22, 2015, on the start of a 3-day trip to Washington. AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

US President Barack Obama (L) greets Pope Francis (R) upon his arrival September 22, 2015 at Andrews Air Force Base in Maryland. AFP PHOTO/MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)

US President Barack Obama welcomes Pope Francis upon his arrival on September 22, 2015 at Andrews Air Force Base in Maryland. AFP PHOTO/MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)

JOINT BASE ANDREWS, MD - SEPTEMBER 22: Pope Francis shakes hands with Vice President Joe Biden along with U.S. President Barack Obama, first lady Michelle Obama, and other political and Catholic church leaders after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Chip Somodevilla/Getty Images)

JOINT BASE ANDREWS, MD - SEPTEMBER 22: Pope Francis shakes hands with Vice President Joe Biden along with U.S. President Barack Obama, first lady Michelle Obama, and other political and Catholic church leaders after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Chip Somodevilla/Getty Images)

Pope Francis steps off his plane at Andrews Air Force Base in Maryland, September 22, 2015, on the start of a 3-day trip to Washington. Pope Francis arrived in the United States on Tuesday for his first-ever visit, a trip that will include a meeting at the White House with President Barack Obama and a speech to Congress. AFP PHOTO/MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)