People attend a Halloween event at Ocean Park on October 30, 2015 in Hong Kong. Halloween – a named taken from 'All Hallows' Even' falls on the day before All Saints' Day on November 1 – a holiday when Christians remember their deceased loved ones. (Photo by Anthony Kwan/Getty Images)

1: Dubai's Burj Khalifa is the tallest building in the world, but perhaps not for long. Saudi Arabia has announced plans to build a 1 kilometer (3,280 foot) tower into the sky, to be named the Jeddah Tower, scheduled for completion in 2020. The Burj Khallifa currently stands at 2,716 ft. (Photo by Matthias Seifert/Reuters)

A female hippopotamus named “Mali”, which means Jasmine, eats fruits arranged to look like a cake during her 50th birthday celebration at Dusit Zoo in Bangkok, Thailand September 23, 2016. (Photo by Chaiwat Subprasom/Reuters)

The extremely rare Kelvin-Helmholtz cloud formation lurking in the skies over Northumberland in North East England on December 5, 2023. The distinctive formation gets its name from scientists Lord Kelvin and Hermann von Helmholtz who studied the physics behind the rare cloud. (Photo by Ian Davison/South West News Service)

A robot named Nia from Beijing Qingfei Technologies Co. Ltd greets visitors to the Zhongguancun Forum at the Zhongguancun International Innovation Center in Beijing, China, Friday, March 28, 2025. (Photo by Ng Han Guan/AP Photo)

Azalea, whose Korean name is “Dalle”, a 19-year-old female chimpanzee, lights a cigarette at the Central Zoo in Pyongyang, North Korea on Wednesday, October 19, 2016. According to officials at the newly renovated zoo, which has become a favorite leisure spot in the North Korean capital since it was re-opened in July, the chimpanzee smokes about a pack a day. They insist, however, that she doesn’t inhale. (Photo by Wong Maye-E/AP Photo)

Nadeea Volianova the Russian Pop Star's bizarre, naked New Years “Art Installation” featuring an American flag, the named Putin and Trump in huge letters and the singer wearing a space helmet and not much else, Art Threat Gallery, Las Vegas, NV on December 29, 2016. (Photo by S_bukley/Splash News and Pictures)

A Common seal named Groot is prepared for release in a transfer cage at Seal Rescue Ireland wildlife sanctuary where two rescued and rehabilitated seals are released back into the sea after months of care in Wexford, Ireland, June 12, 2016. (Photo by Clodagh Kilcoyne/Reuters)