A reveler in costume laughs during the “Cordao do Boitata” street party in Rio de Janeiro, Brazil, Sunday, February 24, 2019, one of the many parades before the official start of Carnival on March 1. (Photo by Leo Correa/AP Photo)

(L-R) Joe Manganiello and Sofía Vergara attend the 2020 Vanity Fair Oscar Party hosted by Radhika Jones at Wallis Annenberg Center for the Performing Arts on February 09, 2020 in Beverly Hills, California. (Photo by Emma McIntyre/VF20/Getty Images)

(L-R) American media personality and socialite Kylie Jenner and American model and television personality Gigi Hadid attend the 2023 Vanity Fair Oscar Party Hosted By Radhika Jones at Wallis Annenberg Center for the Performing Arts on March 12, 2023 in Beverly Hills, California. (Photo by Stefanie Keenan/VF23/WireImage for Vanity Fair)

American singer and songwriter Addison Rae attends W Magazine's Annual Best Performances Party at Chateau Marmont on January 05, 2024 in Los Angeles, California. (Photo by Roger Kisby/Getty Imagesfor W Magazine)

(L-R) Tom Kaulitz, Heidi Klum and Leni Klum attend Heidi Klum's 23rd Annual Halloween Party at Hard Rock Hotel New York on October 31, 2024 in New York City. (Photo by TheStewartofNY/WireImage)

American actress Monica Barbaro at the Willy Chavarria Met Gala after party co-hosted with Wayman and Micah held at the Mark Hotel on May 05, 2025 in New York, New York. (Photo by Lexie Moreland/WWD via Getty Images)

Buzludzha is a historical peak in the Central Stara Planina, Bulgaria and is 1441 metres high. In 1868 it was the place of the final battle between Bulgarian rebels led by Hadji Dimitar and Stefan Karadzha and the Ottoman Empire. The Buzludzha Monument on the peak was built by the Bulgarian communist regime to commemorate the events in 1891 when the socialists led by Dimitar Blagoev assembled secretly in the area to form an organised socialist movement with the founding of the Bulgarian Social Democratic Party, a fore-runner of the Bulgarian Communist Party. The Monument was opened in 1981. No longer maintained by the Bulgarian government, it has fallen into disuse. Buzludzha is reached by a 12 km side road from the Shipka Pass.

An orangutan named “Pacquiao” dressed in a Santa Claus costume reacts as he joins an “Animal Christmas Party” at the Malabon zoo in suburban Malabon, north of Manila, Philippines Monday, December 21, 2015. The Malabon Zoo is one of the largest private collections of exotic and endemic animals in the Philippines. (Photo by Aaron Favila/AP Photo)