An employee controls the arms of a manned biped walking robot “METHOD-2” during a demonstration in Gunpo, South Korea, December 27, 2016. It stands 13-feet (3,96 m) tall, weighs 1.3 tons and wields a pair of 286-pound (129,73 kg), motion-tracking metal arms. (Photo by Kim Hong-Ji/Reuters)

A detail of Farmers Insurance “We Came, We Saw, We Covered” float which was featured in the 128th annual Rose Parade is pictured in Pasadena, California U.S., January 3, 2017. (Photo by Mario Anzuoni/Reuters)

19 individually themed and hand crafted art suites have been newly designed by creatives from across the world – from a swedish artist who made a giant snow elephant in the room, to a french team who fused snow, ice and disco into a groovy sleeping experience. Each year, the hotel creates a new series of artist-designed accommodation spaces that add to the existing landscape of private rooms. (Photo by Icehotel.com/Exclusivepix Media)

Željava Air Base, situated on the border between Croatia and Bosnia and Herzegovina under Plješevica Mountain, near the city of Bihać, Bosnia, was the largest underground airport and military air base in the former Yugoslavia, and one of the largest in Europe. (Photo by Thomas Windisch/Exclusivepix Media)

A soldier helps another with her ear protection at the Terningmoen Camp in Elverum, Norway on March 23, 2017. Soldiers demonstrate their skills and tactics during a contract drill as they train to become part of the world's first all-female special forces unit, the Jegertroppen or “hunter troops”. (Photo by Carolina Reid/NBC News)

New York Police officers arrest a drag queen during a weekly “We Choose Freedom” march through the West Village, Thursday, November 5, 2020, in New York. (Photo by Seth Wenig/AP Photo)

Excited Brits beamed as they grabbed a pint outside in Leeds, United Kingdom on April 17, 2021. Pubs and restaurants with outdoor space have been allowed to reopen as lockdown restrictions are eased in the UK. (Photo by Nb press ltd)

Trainers from Tianjiao Special Guard/Security Consultant Ltd. Co. engage trainees dressed in swimming suits as they crawl on the beach during a training session in Sanya, Hainan province January 8, 2012. (Photo by CHINA DAILY/Reuters)