Romanian singing duo Gabriella and Monica Irimia, The Cheeky Girls prforms in Falkirk, Scotland on May 4, 2003. (Photo by Michael Schofield/News Group Newspapers Ltd)

A signing session during the International tattoo convention at Tobacco Dock in east London, England on September 27, 2019. (Photo by Steve Parkins/Rex Features/Shutterstock)

Two revelers dressed as toy soldiers gesture toward a police officer in a patrol car during the traditional carnival parade in Wuerzburg, Germany, 15 February 2015. Under the motto “Carnival Parade is cool” about 160 groups with over 3,000 members took part in one of the biggest carnival parades in southern Germany. (Photo by Daniel Karmann/EPA)

Tank crew standing in front of M-4 tank, Ft. Knox, Kentucky, June, 1942. (Alfred Palmer/OWI/LOC)

Londoners sleep on the platform and on the train tracks at Aldwych Underground station,London, during heavy all night Nazi bombing raids, October 8, 1940. (Photo by AP Photo)

Mature woman lying on bed, rear view. (Photo by Andersen Ross/Getty Images)

Hindu devotees run through red hot embers as part of annual fire walking ritual during “Draupadi Amman” festival in Bangalore on June 9, 2019. (Photo by Manjunath Kiran/AFP Photo)

Firefighters extinguish a fire in Kampar, Riau province on Indonesia's Sumatra island on August 13, 2019. Indonesian authorities are deploying thousands of extra personnel to prevent a repeat of the 2015 fires, which were the worst for two decades and choked the region in haze for weeks. (Photo by Wahyudi/AFP Photo)