People dressed as zombies participate in a parade for World Zombie Day 2016 in London's West End, Britain on October 9, 2016. (Photo by Splash News and Pictures)

A policeman controls traffic at 42nd Street and 7th Avenue as New York City remains without electricity caused by a blackout that affected the entire city and most of the eastern part of the nation August 15, 2003 in New York, New York. More than 50 million people were affected by the outage, in Toronto, Detroit, Cleveland and New York City. (Photo by Jose Jimenez/Primera Hora/Getty Images)

Horse Racing – Crabbie's Grand National Festival – Aintree Racecourse April 10, 2015: Racegoers react during the 17.15 Weatherbys Wealth Management Champion Standard Open National Hunt Flat Race. (Photo by Andrew Boyers/Reuters)

A model presents a creation from the Liu Bolin Debut collection during New York Fashion Week in the Manhattan borough of New York City, U.S., September 10, 2017. (Photo by Amr Alfiky/Reuters)

This strange coral-looking specimen is actually a mushroom. The photo, “Beautiful Destroyer”, was taken in the Panamanian tropical rainforest where the mushroom produces nitrogen, an element vital to soil health. (Photo by Sarah A. Batterman)

“That’s the only way to show how we really are” – sweaty, exhausted, but happy, actress and singer Juliette Lewis said about the idea of a photo collection capturing musicians moments after a concert. Photographer Matthias Willi and journalist Olivier Joliat have persuaded about 100 bands to take part in their “The Moment After the Show” project since 2005. Photo: Iggy Pop. (Photo by Matthias Willi/Olivier Joliat/The Moment After The Show)

Patrick Scolaro and Cory Sullivan of Boca Raton playfully duke it out wearing masks that were handed out to attendees of the Rock the Vote concert at Mizner Park after the debate. (Photo by Allen Eyestone/The Palm Beach Post)

A man dressed as a zombie poses during the Thrill The World 2009 event, which sees fans from all over the world dance simultaneous to Michael Jackson's “Thriller” at Luna Park on October 25, 2009 in Sydney, Australia. (Photo by Brendon Thorne/Getty Images)