The Week in Pictures: July 25 - Aug. 1

Pope Francis draws a crowd, Thailand's beaches turn black with oil, hundreds of hot air balloons fly in the sky in France, and more.

A woman carrying her baby and wrapped with a shawl walks through a sandstorm in Timbuktu on July 29.

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Joe Penney / X02952

Two Polish nuns look at people bathing as hundreds of thousands of young Catholic pilgrims attending World Youth Day start gathering at Copacabana beach in Rio de Janeiro for a prayer vigil with Pope Francis, on July 27. In a speech to Brazil's political, religious and civil society leaders earlier, Pope Francis said a "constructive dialogue" was needed to confront the country's social turmoil.

Yasuyoshi Chiba / AFP

A man reaches out of a hotel window to take a photo as crowds jam Copacabana Beach for Pope Francis' final mass on his trip to Brazil on July 28 in Rio de Janeiro. A reported crowd of 3 million faithful filled the beach for a prayer vigil on the final night of World Youth Day last night.

Mario Tama / Getty Images South America

A boy's mother puts the finishing touches to his uniform ahead of the Eternal Sacred Order of the Cherubim and Seraphim Church's annual Thanksgiving service on July 28 in south London. The indigenous African initiated Christian church was founded in Nigeria in 1925 and has an estimated 5 million members that worship in around 1,500 houses of prayer worldwide.

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Dan Kitwood / Getty Images Europe

A tortoise makes its way through mud in Kfar Kila village near the Lebanese-Israeli border, in south Lebanon on July 29.

Ali Hashisho / X01161

An aerial view shows destruction in the Khalidiya district of Homs, Syria, on July 26. Syrian troops drove insurgents from the central district of Homs on Monday, tightening their siege on remaining rebel bastions in the city, which links Damascus to the Mediterranean heartland of President Bashar al-Assad's Alawite sect.

Handout / X80001

Former U.S. congressman from New York and current Democratic candidate for New York City Mayor Anthony Weiner leaves a campaign stop at the Nan Shan Senior Center to meet the press, in the Queens borough of New York on July 29. The campaign manager who helped to guide Anthony Weiner's bid for New York City mayor resigned over the weekend, a spokeswoman said on Sunday, as the Democratic former Congressman grapples with slumping poll numbers and fresh revelations of his sexually charged Internet activity.

Shannon Stapleton / X90052

Missy Franklin of the USA, left, and Emily Seebohm of Australia, center, compete in the Swimming Women's 100-meter backstroke final on day 11 of the 15th FINA World Championships at Palau Sant Jordi on July 30 in Barcelona, Spain.

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Clive Rose / Getty Images Europe

Stefanie Dolson, top left, NCAA women's basketball 2013 national champions player from the University of Connecticut, puts bunny ears over President Barack Obama during a ceremony to honor the team in the East Room at the White House in Washington, July 31.

Larry Downing / X00961

A woman cries next to the coffins of victims of a bus crash during the funeral service at the Monteruscello Palasport near Pozzuoli, Italy, on July 30. Thousands of people packed into a sports hall in the southern town of Pozzuoli on Tuesday to commemorate 38 people who died when a bus plunged 80 feet off a motorway viaduct in one of the worst road accidents in Italian history.

Ciro De Luca / X03151

A worker wipes his face while he walks through oily surf on Ao Prao beach on Thailand's Koh Samet island. More than thirteen thousand gallons of crude oil spilled from a pipeline in the Gulf of Thailand onto the white sand beaches of Ao Prao, on Koh Samet, popular tourist destinations in Rayong province about 2.5 hours southeast of Bangkok.

Jack Kurtz / ZUMA Wire

Supporters of Egypt's ousted President Mohammed Morsi attend Friday prayer services during a protest at Nasr City, where protesters have installed their camp and hold their daily rallies, in Cairo on July 26.

Khalil Hamra / AP

Hot air balloons fly near a church over Chambley-Bussieres, eastern France, on July 31 at sunset, to try to set a world record with 408 balloons in the sky, as part of the yearly event "Lorraine Mondial Air Ballons," an international air-balloon meeting.

Jean-christophe Verhaegen / AFP