A mushroom cloud dwarfs a row of skyscrapers in what looks like a devastating nuclear bomb detonation. But thankfully this is just a spectacular weather-front blasting in from the tempestuous Rocky Mountains near Denver, Colorado, USA. The unbelievable shot is just one of many of the city's skyline taken by photographer Greg Thow. The 49-year-old has also captured equally stunning shots of lightning blasts and arching rainbows – all from the comfort of his balcony. (Photo by Greg Thow/Barcroft Media)

NYC morning fog. Wednsday, January 15, 2014, morning dense fog creates spectacular views over the East river of lower Manhattan, Brooklyn and Manhattan bridges as New Yorkers and tourist admire the scenery. View from Brooklyn Bridge Park in DUMBO Brooklyn. (Photo by Paul Martinka/New York Post)

A daredevil photographer is determined to capture London in a whole new light – by scaling the city’s many rooftops. Jacob Riglin, from Richmond Upon Thames, photographs the nation's capital from above – hanging from scaffolding, dangling his legs over the edge of buildings and looking down from perilous heights. Such images have gained the photographer, 20, an incredible fan base on Instagram, which has seen his follower count rise to more than 150,000. He said, “I had always been interested climbing and getting that adrenaline rush from feeling on top of the world”. Here: Jacob looking out to the London skyline. (Photo by Jacob Riglin/Caters News)

Two holidaymakers amuse themselves with a porter's trolley whilst waiting for their train at Euston Station, London, 5th August 1939. (Photo by A. J. O'Brien/Fox Photos/Getty Images)

A policeman stands by a burning car, set alight during a communist march in the East End of London. (Photo by Topical Press Agency/Getty Images). Circa 1936

Anne London found her focus at the age of 19 while working for Tippi Hedren, founder of Shambala , a refuge for big cats, elephants and other species located in California. There, as she walked among the animals, she realized that the commercial art field was not for her, and she dedicated her life to bringing about awareness of the plight of endangered wildlife across the globe, and raising money for conservation efforts.

Father Christmas arriving at the Arding and Hobbs store in Clapham Junction, London, 2nd November 1926. (Photo by H. F. Davis/Topical Press Agency/Getty Images)