The main entrance and blast door at the nuclear bunker site on the Woodside Road industrial estate on February 4, 2016 in Ballymena, Northern Ireland. The underground shelter has been put up for sale by the offices of the Northern Ireland First and Deputy First Minister. The bunker which was completed in 1990 was built to hold up to 235 people in the event of a nuclear bomb and is complete with kitchen facilities, dormitories and decontamination chambers. The site, one of approximately 1,600 nuclear monitoring posts built in the UK since 1955, is on the housing market with an asking price of £575,000. (Photo by Charles McQuillan/Getty Images)

A light pillar is a visual phenomenon created by the reflection of light from ice crystals with near horizontal parallel planar surfaces. The light can come from the Sun (usually at or low to the horizon) in which case the phenomenon is called a sun pillar or solar pillar. It can also come from the Moon or from terrestrial sources such as streetlights.

An installation of Canadian artists Caitlind Brown and Wayne Garrett is displayed during the Lumina Light Festival in Cascais September 14, 2014. Lumina Light Festival shows artworks of artists from several countries, which are displayed during a tour around Cascais. (Photo by Rafael Marchante/Reuters)

People walk throw the Damascus gate during the Jerusalem Festival of Lights on June 15, 2011 at Jerusalem's Old City, Israel. The festival opened on Wednesday night and will run for a week in the Old City of Jerusalem, hosting Israeli and international artists and creators who will display their installations throughout the week. (Photo by Uriel Sinai/Getty Images)

Palestinians walk on a road during a power cut in Beit Lahiya in the northern Gaza Strip January 11, 2017. (Photo by Mohammed Salem/Reuters)

A man flies a kite made of 110 Tukkal or paper lanterns for the Hindu festival of “Makar Sankranti”, which marks the start of spring, in Ahmedabad January 13, 2011. (Photo by Amit Dave/Reuters)

These stunning light art pictures of skateboarding skeletons were created by Darren Pearson from Los Angeles. He works as a full time illustrator by day and by night he explores the varying landscapes of California in search of the perfect scene for his light-sculptures. Pearson makes complex light-effect photographs, none of which are photoshopped. He describes the work as location-based light art. Photo: A light skateboarder grinding a rail. (Photo by Darren Pearson/Caters News)