Students wearing masks as a precaution amid the spread of COVID-19 put away a Cuban flag so it does not get wet in the rain on their first day of school after months without face-to-face classes in Havana, Cuba, Monday, November 8, 2021. As Cuba approaches the announced date of Nov. 15 for the reopening of the entire country to the world, getting children back to school is one of its priorities. (Photo by Ramon Espinosa/AP Photo)

A pedestrian wearing a face mask to protect against coronavirus, walks in front of a mural, at a metro station in Athens, Greece, Monday, November 15, 2021. Authorities say the rate of death related to COVID-19 in Greece has reached its highest level in six months as roughly one-third of the country's population remains unvaccinated. (Photo by Thanassis Stavrakis/AP Photo)

“The Glimmer Twins”, a statue of Rolling Stones Sir Mick Jagger and Keith Richards created by sculptor Amy Goodman (centre), is unveiled at One Bell Corner in Dartford, Essex, UK on Wednesday, August 9, 2023. The statue has been commissioned by Dartford Borough Council to celebrate two of the town's most famous former residents. (Photo by Yui Mok/PA Images via Getty Images)

A Kashmiri farmer picks saffron flowers from a field in Pampore, south of Srinagar, the summer capital of Indian Kashmir, 06 November 2023. Pampore, also known as the Saffron town of Kashmir, is famous for its high quality saffron. It is one of few places in the world where the world's most expensive spice grows. (Photo by Farooq Khan/EPA)

Two grasshoppers on the Shark Valley Hiking Trail, at the Everglades National Park near Miami, Florida, USA, 12 August 2025. Located in the southernmost part of Florida, the Everglades wetland is recognized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) as one of the most unique ecosystems in the world due to its unparalleled biodiversity. A lawsuit over the potential environmental impact of the construction of “Alligator Alcatraz” has halted further construction on this new migrant detention center. (Photo by Cristóbal Herrera/EPA)

US Army Parachute Team Golden Knights perform a precision drop to commemorate the 50th anniversary of the end of the Vietnam War, above West Potomac Park in Washington, DC, USA, 11 May 2023. The performance is one of many activites being held on the National Mall over three days to honor Vietnam War veterans and their families and to commemorate the 50th anniversary of when the last US combat troops left South Vietnam in 1973. (Photo by Michael Reynolds/EPA/EFE)

A woman looks at model of the Cathedral Mosque in Kazan, during the 28th International Exhibition – Forum of Architecture and Design “Arch Moscow” in Moscow, Russia, 24 May 2023. Arch Moscow is one of the oldest architectural and construction exhibitions in Moscow. The 28th International Exhibition – Forum of Architecture and Design takes place from 24 May to 27 May 2023. (Photo by Yuri Kochetkov/EPA/EFE/Rex Features/Shutterstock)

Roof-topping enthusiast Daniel Lau takes a selfie with high-rise buildings down below as he stands on the top of a skyscraper in Hong Kong, China on August 15, 2017. A craze that began in Russia has now taken hold in Hong Kong, one of the world's most vertical cities. Mr Lau said he had been inspired by Russian climbers and that he was unafraid of the vertiginous heights he scales. (Photo by ImagineChina/Rex Features/Shutterstock)