23 August 2012
Last updated at 13:13
A woman swims in the Isar river, in Munich, southern Germany, as temperatures in the Bavarian capital reached up to 30C.
A fisherman walks with his catch on the banks of the Yangtze River, near the Three Gorges Dam in Hubei province. The dam, which is said to have cost up to $40bn (£25bn) and forced 1.4m people to relocate, was intended to meet electricity needs while offering a solution to flooding problems.
Nasa's Curiosity rover has finally begun to roll, more than two weeks after landing on Mars, moving forward just a few metres and leaving tracks on the planet's surface.
A general view of Luckweti village, north Kivu where Patriotic Alliance for Free and Sovereign Congo (APCLS) rebels have set up their headquarters. A recent summit in Uganda failed to reach an agreement on how to achieve peace in eastern Democratic Republic of Congo.
Judy Annear, senior curator of photography with the Art Gallery of New South Wales, inspects an 1898 albumen photograph by Eugene Atget. More than 200 of the French photographer's pictures from the collection of the Musee Carnavalet, in Paris, will go on display at the first comprehensive exhibition of his work in Australia.
The peloton makes it way toward Independence Pass during stage three of the USA Pro Challenge cycle event from Gunnison to Aspen in Pitkin County, Colorado.
Screenwriter, musician and composer Nick Cave signs autographs as he arrives for the premiere of Lawless - for which he wrote the screenplay - at a Hollywood cinema.
An inmate sleeps at Maricopa County's controversial Tent City jail, in Phoenix, Arizona, run by Maricopa County Sheriff Joe Arpaio, who is seeking re-election for a sixth term in November's general election.
A new wax figure of French President Francois Hollande is prepared during a photo call at Madame Tussauds in London.
Women carry water pots as they take part in a Jhulelal Chaliha procession - a 40-day fasting festival of the Sindhi community - in the western Indian city of Ahmedabad.
Charms, songs and spirit of Senegal's Muslim brotherhood
Reptiles rescued by the RSPCA centre in Brighton
Drones to monitor gray whales of the coast of California
Photographer Timothy Allen climbs high into the Peruvian Andes for Qoyllur Rit'i - the Snow Star Festival.
Who won? The official poster for the 2015 festival
Party time at the 60th song contest in Vienna
Rare access - an Indian high court at work
Ben Weller has been taking pictures of South Korea's markets
Readers' images on the theme of looking in
From around the world - 16-22 May