Selena Gomez, left, and Taylor Swift arrive at the MTV Video Music Awards at the Microsoft Theater on Sunday, August 30, 2015, in Los Angeles. (Photo by Jordan Strauss/Invision/AP Photo)

American rapper Amala Ratna Zandile Dlamini, known professionally as Doja Cat performs at the 2021 Billboard Music Awards at Microsoft Theater in Los Angeles, California, U.S., May 21, 2021. (Photo by Mario Anzuoni/Reuters)

American rapper Megan Thee Stallion accepts the best female hip hop artist award at the BET Awards on Sunday, June 27, 2021, at the Microsoft Theater in Los Angeles. (Photo by Chris Pizzello/AP Photo)

An attendee makes a video with the new iPhone 16 Pro as Apple holds an event at the Steve Jobs Theater on its campus in Cupertino, California on September 9, 2024. (Photo by Manuel Orbegozo/Reuters)

A wolf skin is on display for sale next to a painting of Russian communist revolutionary Vladimir Ilyich Ulyanov, also known as Lenin, at Izmailovo flea market in Moscow on December 3, 2017. (Photo by Mladen Antonov/AFP Photo)

Members of the Scottish Chinese community take part in Edinburgh Chinese New Year Festival on January 30, 2022 in Edinburgh, Scotland. 2022 marks the Chinese Year of the Tiger, Chinese New Year in Edinburgh has become one of the largest celebrations of its kind in Scotland. (Photo by Jeff J. Mitchell/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 No longer maintained by the Bulgarian government, it has fallen into disuse.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.

A general view shows the wreckage of armed trucks on the streets of Budapest at the time of the uprising against the Soviet-supported Hungarian communist regime in 1956. The picture was taken in the period between October 23 and November 4, 1956. (Photo by Laszlo Almasi/Reuters)