The brutalist war memorials found throughout the former Yugoslavia were weird enough when they were built in the 1960s and 70s. Today, separated by the end of an architectural movement and the disintegration of the country, they seem almost alien. Belgian photographer Jan Kempenaers treats them purely as artistic objects in his book, “Spomenik”, named for the Serb-Croat word for monument. Known for photographing geographical oddities, Kempenaers was captivated by the spomenik after seeing them in an art encyclopedia. After hearing that many had been destroyed or abandoned, he set out to record what was left. (Photo by Jan Kempenaers)

A fragment of a Koran manuscript is seen in the library at the University of Birmingham in Britain July 22, 2015. A British university said on Wednesday that fragments of a Koran manuscript found in its library were from one of the oldest surviving copies of the Islamic text in the world, possibly written by someone who might have known Prophet Mohammad. Radiocarbon dating indicated that the parchment folios held by the University of Birmingham in central England were at least 1,370 years old, which would make them one of the earliest written forms of the Islamic holy book in existence. (Photo by Peter Nicholls/Reuters)

An Indian Sikh Nihang (a traditional Sikh religious warrior) Baba 'Avtar' Singh wears an oversized giant traditional turban as he pay respects at the Golden temple in Amritsar on November 10, 2015 on the eve of the Indian festival of Diwali, the festival of lights. There will be no spectacular show of light and fireworks this Diwali at the Golden Temple as the Shiromani Gurdwara Parbandhak Committee (SGPC) has decided not to celebrate the festival in the wake of series of incidents of alleged desecration of the Guru Granth Sahib (Sikh holy book). (Photo by Narinder Nanu/AFP Photo)

For the April cover shoot of Interview Magazine, photographers Mert & Marcus (Mert Alas and Marcus Piggott; Mert (from Turkey) and Marcus (Welsh from the UK) are one of the premier photographers in the world) captured the stunning Keira Knightley in an attractive black and white photo spread. Rocking pieces from Louis Vuitton, Balenciaga, DVF, and YSL, Knightley looks hot and seductive with a cigarette hanging from her boldly painted lips.

Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes, and is elevated 3,656 meters (11,995 ft) above mean sea level. The Salar was formed as a result of transformations between several prehistoric lakes. It is covered by a few meters of salt crust, which has an extraordinary flatness with the average altitude variations within one meter over the entire area of the Salar.

The Greenland ice sheet is a vast body of ice covering 660,235 sq miles, roughly 80% of the surface of Greenland. It is the second largest ice body in the world, after the Antarctic Ice Sheet. Some scientists predict that climate change may be near a "tipping point" where the entire ice sheet will melt in about 2000 years. If the entire 2,850,000 cubic kilometres (683,751 cu mi) of ice were to melt, it would lead to a global sea level rise of 7.2 m (23.6 ft).

Retired teacher Geoff Ostling displays his tattooed skin at a portrait session at his home in Petersham on May 11, 2009 in Sydney, Australia. The 62-year old has pledged to donate his skin to the National Gallery in Canberra after his death. Ostling, who did not get his first tattoo until he was in his forties, is now covered in the artwork by artist eX de Merci from neck to ankle with the theme 'all the flowers of a Sydney garden'. (Photo by Lisa Maree Williams/Getty Images)