A young boy plays with soap bubbles near Hofburg Palace at Heldenplatz, one of the top tourists attractions in Vienna, Austria, January 26, 2016. (Photo by Christian Bruna/EPA)

A climate activist wears an oxygen mask to demonstrate the possibility of pumping oxygen from a tree in a bottle in the future, during a protest against the government's deforestation practices of Sri Lanka's main wildlife forests for developments in Colombo, Sri Lanka on March 22, 2021. (Photo by Dinuka Liyanawatte/Reuters)

Models present creations by Georgian designer Lasha Jokhadze during the Tbilisi Fashion Week in Tbilisi, Georgia, October 19, 2018. (Photo by David Mdzinarishvili/Reuters)

People on inflatable boats enjoy the weather on the Lake Lucerne in Sisikon, Switzerland, August 5, 2018. (Photo by Denis Balibouse/Reuters)

Pusha the cat, which adopted four bereaved baby squirrels and currently feeds and lives with them, lies at a local park of miniatures in Bakhchisaray, Crimea on April 25, 2019. (Photo by Alexey Pavlishak/Reuters)

Members of team China perform during the Artistic Swimming Team Free Final at the FINA Swimming World Championships in Gwangju, South Korea, 19 July 2019. (Photo by Antonio Bat/EPA/EFE/Rex Features/Shutterstock)

People celebrate after Gov. Ricardo Rossello announced that he is resigning Aug. 2 after weeks of protests over leaked obscene, misogynistic online chats, in San Juan, Puerto Rico, Thursday, July 25, 2019. (Photo by Carlos Giusti/AP Photo)

The galactic centre of the Milky Way glows brightly in the clear night sky above the lighthouse at Portland Bill on the Dorset Jurassic Coast, United Kingdom on April 13, 2021. (Photo by Graham Hunt/Alamy Live News)