Participants take part in the 14th annual “No Trousers Tube Ride” event on the London Underground on January 12, 2025. The event, staged by Improv Everywhere, takes place every January in New York City and has since expanded internationally. What began as a small prank with just seven participants has grown into a global celebration of silliness, with dozens of cities, including London, joining in each year. (Photo by Guy Bell/Alamy Live News)

“Valentine Shmalentine”, 2011. (Photo by GillyFace)

It is already one of the world’s most iconic cities, but this incredible collection shows how much Paris has changed over the course of the past century. The collection, by French photographer Julien Knez, shows Paris in the 1940s against a backdrop of how the same places look today. Knez says he put the striking collection together to celebrate the 71st anniversary of the city’s liberation from Nazi control in August 1944. Here: Soldiers outside the Hotel De Ville in the 1940s. (Photo by Julien Knez/Caters News)

Medics carry an injured at the explosion site in the busy center of Turkish capital, Ankara, Turkey, Sunday, March 13, 2016. The explosion is believed to have been caused by a car bomb that went off close to bus stops. News reports say the large explosion in the capital has caused several deaths and many casualties. (Photo by AP Photo)

A giant biodegradable landart painting entitled “Vers l'equilibre” (Towards balance) by French-Swiss artist Saype is pictured near the summit of the Grand Chamossaire mountain, above the alpine resort of Villars-sur-Ollon, Switzerland, Wednesday, July 06, 2022. Extending over an area of 2500 square meters, this fresco was created using biodegradable pigments made out of charcoal, chalk, water and milk proteins. (Photo by Valentin Flauraud/Keystone via AP Photo)

People watch on from Marks Park as a thunderstorm gathers off Bondi Beach on November 13, 2020 in Sydney, Australia. The Bureau of Meteorology issued a number of severe weather alerts for the region today, with a high risk of thunderstorms and hail. (Photo by Brook Mitchell/Getty Images)

A terrace of a house is covered with ash after the eruption of the Fuego volcano at San Miguel Los Lotes in Escuintla, Guatemala, June 6, 2018. (Photo by Carlos Jasso/Reuters)

Birds sit on the back of a zebra in the Nairobi National Park, near Nairobi, Kenya, November 21, 2018. (Photo by Baz Ratner/Reuters)