The photos of the week of July 13 to 20

Discover the other news of the week with twelve stunning photographs. Tell us what you think in the comments.

Refugee children, displaced by fighting in North Kivu in the Democratic Republic of Congo, play at a camp in south-western Uganda, July 13, 2012. REUTERS / James Akena

Military helicopters fly over the Arc de Triomphe during the traditional parade of 14 July on the Champs Elysees in Paris, July 14, 2012. Reuters / Mal Langsdon

The psychologist Valery Titov shows his daughters Anastasia and Valentina's fitness equipment he designed himself, the family farm near the village of Novopyantnitskoye, 120 km from the Siberian city of Krasnoyarsk in Russia, July 15 in 2012. Valery Titov has patented his inventions, more than 20 fitness equipment made Angara pine and cedar wood and contain no metal component. Used to do weight training or physical therapy, devices have not yet attracted wealthy investors. REUTERS / Ilya Naymushin

Competitors to help a woman overcome an obstacle when the Snow Mount Tough Mudder, West Dover, July 15, 2012. The Tough Mudder is a race of 15 kilometers during which participants must overcome obstacles similar to those of the military route, with mud, water and fire. REUTERS / Jessica Rinaldi

The entrance to a cave, fitted with a cockpit, at the foot of a mountain that was once the seat of former Chinese Communist military leader Lin Biao, located in the countryside in China Beijing, July 16, 2012 . REUTERS / David Gray

Activists of the Communist Party of India protesting against the rising prices of "essential products", in Calcutta, India, July 17, 2012. One can read the signs including: "Stop the extraordinary rise in prices of essential commodities". REUTERS / Rupak De Chowdhuri

An artist made a sculpture of sand on a beach of the Peter and Paul Fortress in Saint Petersburg, Russia, July 18, 2012. REUTERS / Alexander Demianchuk

Paramilitary soldiers raise a trunk in the mud during a physical training in Chuzhou, in Anhui Province, China, July 18, 2012. Reuters / NC

Indian police trying to control the high population came to pay tribute to the Bollywood superstar, Rajesh Khanna, died July 18, 2012. AFP / Punit Paranjpe

A motorized tricycle carrying recyclable plastic bottles on a street in Taiyuan, in Shanxi Province in China, 18 July 2012. Reuters / NC

Ukrainian policemen display their skills during training in the isolation room to Artyomovsk, north of Donetsk, Ukraine, July 19, 2012. AFP / Alexander Khudoteply