Tens of thousands of HIV positive prostitutes in the slums of Lagos to ensure a rapid spread of the epidemic. “If you arrive by car, you can smell the HIV virus outside”, joked my driver as we are on track to Badia a criminal slums of Lagos. Badia is a corruption of “Bad Area”. Nigerians have a lack of everything, except black humor. The poor West African country Nigeria, with a population of 140 million people, after India and South Africa the highest number of people with HIV / AIDS. (Photo by Ton Koene/Exclusivepix Media)

These are the amazing panoramic photographs that look like little planets. They were taken by photographer Dan Arkle, 34, from Sheffield, UK. He said: “On a sharp summit, you feel literally on top of the world, with dramatic views in all directions, including straight down. I tried using conventional photography to capture this feeling, but even with a wide angle lens I couldnt get all the view in the image”. Here: “Taken at the tiny summit of Cima Piccola in the the Tre Cima group in the Dolomites, Italy. The large peak is Cima Grande Some remote peaks have a summit register, and my climbing partner Steve can be seen signing this in the bottom of the picture”. (“Little Planets” Project. Photo and comment by Dan Arkle)

A death mask thought to be that of English dramatist William Shakespeare (1566–1616). Found by Dr. Ludwig Becker in Mainz in 1849, the mask was linked to Shakespeare because of its 1616 date and its supposed facial resemblance to the writer. A rival theory, however, maintains that the mask is more likely to be that of English poet Ben Johnson. (Photo by Hulton Archive/Getty Images). Circa 1900

5-year-old Chinese girl Wang Anna prepares meals for her grandmother and great-grandmother at home in Zhuyuan village, Guizhou province, China on March 3, 2017. Chinese girl called Wang Anna, 5, takes care of her ill grandmother and 92-year-old great-grandmother on her own every day in a mountainous village in Zhima town, Zunyi city, southwest China's Guizhou province. Her father went to jail before she was born and her mother remarried after gave birth to her. Although she is just five years old, she started to shoulder the responsibility to look after ill grandmother and elderly great-grandmother. (Photo by Imaginechina/Rex Features/Shutterstock)

Where Children Sleep – stories of diverse children around the world, told through portraits and pictures of their bedrooms by James Mollison. This is a selection from the 56 diptychs in the book (Chris Boot November 2010). The book is written and presented for an audience of 9-13 year olds‘ intended to interest and engage children in the details of the lives of other children around the world, and the social issues affecting them, while also being a serious photographic essay for an adult audience.

A police officer detains a woman on suspicion of collaborating with the 18th street gang during a "Safe House" operation at the Concepcion neighbourhood in San Salvador, July 2, 2015. Salvadoran police make “Safe House” operations at dangerous neighbourhoods of the capital to prevent murders, according to local media. (Photo by Jose Cabezas/Reuters)

A stuntman performs while riding a car inside the “Wall of Death” attraction during a fair in Bhaktapur April 20, 2015. (Photo by Navesh Chitrakar/Reuters)