A swimmer goes for a dip in freezing temperatures at the Serpentine Lake in Hyde Park, central London on December 1, 2023, as temperatures in the capital dip below zero for another night. The Met Office has issued a yellow weather warning for parts of the UK with freezing temperatures and snow expected in large areas. (Photo by Ben Cawthra/London News Pictures)

Madison Chock and Evan Bates of the U.S. compete in the ice dance rhythm dance program at the Grand Prix of Figure Skating series competition in Tokyo, Japan, Friday, November 8, 2024. (Photo by Hiro Komae/AP Photo)

French-British actress and singer Charlotte Gainsbourg arrives to attend a state dinner in honor of Britain's King Charles and Queen Camilla at the Chateau de Versailles (Versailles Palace) in Versailles, near Paris, on the first day of their State visit to France on September 20, 2023. (Photo by Benoit Tessier/Reuters)

Spain's Paula Badosa gives a thumbs up after falling on the court during her women's singles semi-final match against Belarus' Aryna Sabalenka on day twelve of the Australian Open tennis tournament in Melbourne on January 23, 2025. (Photo by David Gray/AFP Photo)

The company selling wedding dresses with designs made of local and wild grass, exhibited its new collection with local and foreign models consisting of Mesopotamian motifs by organizing a fashion show at Dara Ancient City in Mardin, Turkiye on February 26, 2025. (Photo by Halil Ibrahim Sincar/Anadolu via Getty Images)

In this photo provided by the Florida Keys News Bureau, Maddie Miller, of Tampa, Fla., raises her head during the World Famous Key Lime Pie Eating Championship Tuesday, July 4, 2023, in Key West, Fla. The gooey competition, whose entrants are forbidden to use their hands, has become a subtropical alternative to Nathan's Famous Fourth of July hot dog eating contest in New York City. (Photo by Rob O'Neal/Florida Keys News Bureau via AP Photo)

A Viet Cong suspect holds his hands up after a Vietnamese Ranger from the 21st Vietnam Infantry Division routed him from his hiding place. (Photo by Keystone/Getty Images). 7th November 1967

With the entry of Poland into the European Union in 2004, Warsaw is currently experiencing the biggest economic boom of its history. The opening match of UEFA Euro 2012 is scheduled to take place in Warsaw. (Photo by: ryarwood; Source: Flickr)