A fireman from the London Fire Brigade, wearing a smoke helmet. (Photo by Topical Press Agency/Getty Images). Circa 1908

A young man “painting” the Eiffel Tower. (Photo by Keystone/Getty Images). 9th May 1970

Actor Robert De Niro presents the Guy Movie Hall of Fame award onstage during Spike TV's 5th annual 2011 “Guys Choice” Awards at Sony Pictures Studios on June 4, 2011 in Culver City, California. (Photo by Kevin Winter/Getty Images)

Two children jumping through a water hydrant's shower on a New York street. They have come from a neighbouring co-educational playgroup organised by the city's Police Department. (Photo by Orlando/Getty Images). 1950

“Freestyle skiing is an acrobatic form of technical and aerial skiing. It is organized into a number of different disciplines”. – Wikipedia

Photo: Freeskier Chris Booth of Australia launches off a drop during the World Heli Challenge freestyle day in backcountry at Minaret Station on July 31, 2011 in Wanaka, New Zealand. (Photo by Cameron Spencer/Getty Images)

A French soldier stands near a military combat command vehicle on display at The Defence and Security Exhibition on September 13, 2011 in London, England. ExCeL London is hosting the exhibition with hundreds of manufacturers from all over the world displaying their hardware. (Photo by Peter Macdiarmid/Getty Images)

Flames rage through a pile of tires at the tire dump of Sesena in Toledo, Spain, 13 May 2016. The tire dump reportedly contains over 100,000 tons of tires and reaches to the neighbouring town of Valdemoro in Madrid. According to local authorities, the fire was apparently deliberately started as it had been raining till midnight and the fire started early 13 May 2016 at a small spot in Valdemoro. (Photo by Ismael Herrero/EPA)

Zhang Shifan's sixth-generation facekinis in Shandong Province, Qingdao, East China. A woman credited with inventing the bizarre swimwear known as the “facekini” has now proudly presented the sixth generation of the iconic beach clothing. The new facekini models are not only more comfortable, they also come in a wider variety of colours and patterns, bringing both style and practicality to beach-goers in Qingdao City, in East China's Shandong Province, who fear tan lines. (Photo by CEN)