20 Of The Most Powerful Photos Of This Week
Here are the most moving, sorrowful, and beautiful pictures from the past week.

President Barack Obama hugs Democratic Presidential candidate Hillary Clinton after addressing the delegates during day three of the Democratic National Convention in Philadelphia.

Khizr Khan offers his personal copy of the US Constitution to Donald Trump while addressing delegates on the fourth and final day of the Democratic National Convention. Khan's son, Humayun S. M. Khan was a University of Virginia graduate and enlisted in the US Army. He was one of 14 American Muslims who died serving the United States in the ten years after the September 11, 2001 terrorist attacks.

A man prays beside flowers laid in front of the Olympia shopping mall, where an 18-year-old German-Iranian gunman killed nine people on a shooting rampage.

A Syrian gamer plays the “Pokémon Go” game on his cellphone amidst the rubble in the besieged rebel-controlled town of Douma, a flashpoint east of the capital Damascus.

A hillside erupts in flame as a raging wildfire fire burns in Placerita Canyon in Santa Clarita, California.

Chinese Olympic weightlifter Tian Tao lifts during a training session in Beijing, China. This year China is sending its largest-ever Olympic delegation to Rio de Janeiro, with a total of 416 athletes to compete in 26 sports.

A French police officer watches over the Bayonne festival, or "Fetes de Bayonne", on the roof of the town hall in Bayonne, France. Bayonne, the cultural capital of the French Basque country, hosts the yearly traditional Bayonne festival from July 27-31, and is expected to attract about one million people this year from all over Europe.

A protester holds a banner during a demonstration against the death penalty of prisoner Merry Utami in Cilacap, Indonesia. According to reports, Indonesia is likely to resume executions of 14 prisoners on death row this week.

A fighter of Libyan forces allied with the U.N.-backed government fires an 81mm mortar round in Sirte, Libya.

A high school student is detained during a protest for education reform in Santiago, Chile. Protesters demands include free access to school for all ages, including university level.

Four year old Kameron Pitts, nephew and godson of slain Baton Rouge Police Department officer Montrell Jackson, attends his funeral service at Greenoaks Memorial Park in Baton Rouge, Louisiana.

Pope Francis walks through the gate of the former Nazi German death camp of Auschwitz in Oswiecim, Poland. Pope Francis paid a somber visit to Auschwitz-Birkenau Friday, becoming the third consecutive pontiff to visit the place where Adolf Hitler's forces killed more than 1 million people, most of them Jews.

Fireflies seeking mates light up in synchronized bursts as photographers take long-exposure pictures, inside the Piedra Canteada tourist camp near the town of Nanacamilpa, Mexico.

A pair of fans dressed as Star Wars stormtroopers pose for a photo in the restroom at Comic-Con International in San Diego, California.

A young boy greets a robot after attending a presentation on robotics by Tony Belpaeme, professor of Cognitive Systems and Robotics at Plymouth University.

A child plays on sea grass known as Ulva prolifera at the beach in Qingdao, Shandong Province of China.

A two-headed rattlesnake is handled in its terrarium at the zoo in Scheidegg, Germany.

SMG team driver Wein Han and his co-pilot Jean-Pierre Garcin compete in the 13th special stage of the Silkway rally in Mongolia's Gobi desert. 130 competitors are racing over 10,734 kilometers, crossing three countries and two continents from Moscow to Beijing.

A visitor observes the sculpture "Kneeling Woman" by Australian artist Sam Jinks, at the "Hyperrealist Sculpture" exhibition in the Museum of Bellas Artes in Bilbao, Spain.

A painter works on a mural created by Brazilian artist Eduardo Kobra that will welcome visitors to the Rio 2016 Olympic Games in Rio de Janeiro, Brazil.