Seljalandsfoss waterfall, located in Iceland. Seljalandsfoss is one of the most famous waterfalls of Iceland. This waterfall of the river Seljalandsá drops 60 metres (200 ft) over the cliffs of the former coastline. It's possible to go behind the waterfall. (Photo by HotSpot Media)

Paramedics carry an injured woman out from a subway station after a rush-hour subway train derailment, to be transported by a medical helicopter in Moscow, Russia, on Tuesday, July 15, 2014. A rush-hour subway train derailed in Moscow Tuesday, killing 20 people and injuring at least 150, emergency officials said. Several cars left the track in the tunnel after a power surge triggered an alarm, which caused the train to stop abruptly. (Photo by Ivan Sekretarev/AP Photo)

A combination photo shows some of the colourful doors seen in Rabat's Medina and Kasbah of the Udayas, September 2014. UNESCO made Rabat a World Heritage Site two years ago and media and tour operators call it a “must-see destination”. But it seems the tourist hordes have yet to find out. While visitors are getting squeezed through the better-known sites of Marrakesh and Fez, the old part of Rabat - with its beautiful Medina and Kasbah of the Udayas - remains an almost unspoiled oasis of calm. Smaller and more compact, its labyrinths of streets, passages and dead ends are a treasure trove of shapes and colours, of moments begging to be caught by the photographer's lens. (Photo by Damir Sagolj/Reuters)

A person in a costume poses during the 2024 New York Comic Con, at the Jacob Javits Convention Center in New York City, on October 18, 2024. (Photo by Eduardo Munoz/Reuters)

A dog waits as his companion fills out their ballot at Eastern Market in Washington, DC, on November 5, 2024. (Photo by Allison Robbert for The Washington Post)

A woman rests on a pile of plush toys at IKEA store in the shopping district of Causeway Bay in Hong Kong on November 3, 2024. (Photo by Mladen Antonov/AFP Photo)

Musicians play as bathers run into the chilly waters of English Bay while celebrating New Year's Day with the Polar Bear Swim in Vancouver, British Columbia, Canada on January 1, 2024. (Photo by Chris Helgren/Reuters)

Newly commissioned officers toss their hats during the US Coast Guard Academy's 144th Commencement in New London, Connecticut, on May 21, 2025. (Photo by Joseph Prezioso/AFP Photo)