Seiichiro Nishimoto, CEO of Shelter Co., poses wearing a gas mask at a model room for the company's nuclear shelters in the basement of his house in Osaka, Japan on April 26, 2017. With nearby North Korea increasing its show of power day by day with missile launches and nuclear tests, people in Japan are preparing for the worst by building private nuclear shelters, Reuters reports. (Photo by Kim Kyung-Hoon/Reuters)

Vladimir Mogilnikov, 62, washes his hands in a communal washing room in a dormitory for the workers of Proletarka textile factory in the town of Tver, 200 kilometres north-west from Moscow on August 8, 2020. (Photo by Andrey Borodulin/AFP Photo)

(From L) US musician Jon Batiste, US musician Trent Reznor and English musician Atticus Ross, winners of the award for Original Score for “Soul”, pose in the press room at the Oscars on April 25, 2021, at Union Station in Los Angeles. (Photo by Chris Pizzello/Pool via AFP Photo)

The world’s largest public sauna has opened on a small island in the Arctic Circle and there’s room for you and about 100 of your closest mates.

A reveller dressed as Spider-Man takes part in a presentation at the top of a building during an annual block party known as “Enquanto isso na Sala da Justiça” (Meanwhile, in the justice room), one of the many carnival parties taking place in the neighbourhood of Olinda, Brazil February 7, 2016. (Photo by Ueslei Marcelino/Reuters)

Derek Hough, right, and Julianne Hough, co-winners of the award fo rOutstanding Choreography for “Dancing with the Stars”, pose in the press room at the Creative Arts Emmy Awards at the Microsoft Theater on Saturday, September 12, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP Photo)

A man sleeps between tombstones in front of his single-room home on a hot night in the Cairo Necropolis, Egypt, October 13, 2015. In the sprawling Cairo Necropolis, known as the City of the Dead, life and death are side by side. Amid a housing crisis in Egypt, and with the population of greater Cairo estimated at about 20 million, people count themselves lucky to have a place to call home in the graveyards that date back hundreds of years. (Photo by Asmaa Waguih/Reuters)