The photograph you see above isn’t the result of Photoshop or infrared photography. Captured by Spanish photographer Palíndromo Mészáros, it shows what the landscape of Ajka, Hungary looked like half a year after the Ajka alumina plant accident — an industrial disaster in which 35 million cubic feet of toxic waste flooded the land to a height of around 6.5 feet. Mészáros lined up the thick red line caused by the sludge with the horizon line to obtain this surreal image.

A Dartmoor Hill pony foal runs on the moor on Dartmoor on May 17, 2011 in Princetown England. Although a tourist attraction, especially during the foaling season and often seen as part of the landscape of Dartmoor, many ponies face an uncertain future due to unsustainable breeding and their falling market values. The charity South West Equine Protection estimates that last year 1500 ponies were slaughtered – with many being sold for lion meat to nearby zoos. Along with other equine charities, they are calling for the removal of stallions from the moor to bring numbers down to sustainable levels. (Photo by Matt Cardy/Getty Images)

Documentary photographer William E. Crawford was one of the first Western photographers to gain access to North Vietnam after the war ended. He has photographed the capital, Hanoi, at regular intervals since 1985, concentrating on the colonial and indigenous architecture, urban details, landscapes and intimate portraits of people in their home settings, street scenes and the city’s surrounding countryside. Here: 54 Hàng Ga (Chicken Street), 1994. (Photo by William E. Crawford from the book “Hanoi Streets 1985-2015: In the Years of Forgetting”)

A landscape photographer turned the camera on himself to take a set of incredible selfie while visiting some of the world's most beautiful destinations. Paul Zizka, 39, from Alberta, Canada, has been a photographer for nine years, and thought that featuring in his own pictures would emphasize the nature surrounding him and create a more unique shot. Here: Lake Minnewanka, Banff National Park, Alberta, Canada. (Photo by Paul Zizka/Caters News Agency)

The photography of Art Wolfe covers the globe, capturing landscapes, wildlife, and cultures from every continent; here he talks through a selection of his favourite images. Art Wolfe is an American photographer and conservationist. His photographs have been noted by environmental advocacy groups for their “stunning” visual impact. Here: Snowy owlets (Bubo scandiacus), Arctic National Wildlife Refuge, Alaska, USA. (Photo by Art Wolfe/Art Wolfe Stock)

Catherine Nelson is a visual artist who uses the digital medium to paint images together into personal and imaginary landscapes. Trained as a painter in Sydney and London and with years of experience in the creation of visual effects for feature films like Moulin Rouge and Harry Potter, she now has dedicated her skills to her own art work combining the techniques from both these worlds into a new contemporary art medium. Her latest series have been exhibited in Australia, New Zealand, China, Korea, USA and Europe and have captivated audiences and art collectors in cities like Sydney, Paris, Los Angeles, Beijing and Seoul.