The Northern Lights glow green in a spectacular light show above a field of trees frozen solid with snow. (Photo by Jaak Sarv/Solent News & Photo Agency)

A fan lies passed out on the first day of the Wacken Open Air heavy metal music fest on August 4, 2011 in Wacken, Germany. Approximately 75,000 heavy metal fans from all over the world have descended on the north German village of 1,800 residents for the annual three-day fest. (Photo by Sean Gallup/Getty Images)

DJI Phantom 3 Severe Crash - Train Bridge

A staff member at the Rising Sun Anger Release Bar suits up in protective gear August 8, 2006 in Nanjing of Jiangsu Province, China. (Photo by China Photos/Getty Images)

Members of the Prizma Ensemble wearing full solid-coloured bodysuits walk pest ultra orthodox jewish men as they take part in the 6th Jane's walk Jerusalem in Jerusalem, Israel May 6, 2016. Jane's Walk is a global walking tour movement, inspired by US-Canadian author and activist Jane Jacobs. (Photo by Baz Ratner/Reuters)