Vietnam’s Son Doong cave, the largest in the world, could hold a 40-story skyscraper inside. The pristine ecosystem has its own river and jungle. Despite its size, Son Doong wasn’t discovered until 1991. It was lost again for nearly two decades and was fully explored for the first time in 2009. (Photo by Jason Speth/HuffPost)

Some of the worlds most iconic cities have been photographed as youve never seen them before in the shape of tiny round planets. By using a pioneering method of aerial photography, each location can be now seen at a full 360 degree angle. After some skilful manipulation on Photoshop known technically as stereographic projection, each sweeping panorama is then turned into a small circular shaped image. Whether its the Eiffel Tower, The Empire State Building or the Shanghai Skyline, each image manages to show hundreds of miles of city landscape. Here: the French Riveria of Cannes, France. (Photo by Airpano/Caters News)

People take pictures of the sun rising next to the buildings of the banking district in Frankfurt, Germany, Saturday, December 28, 2019. (Photo by Michael Probst/AP Photo)

Vultures gather to eat waste in Bica beach, on the banks of the Guanabara Bay, with the Sugar Loaf mountain in background, 500 days ahead the Rio 2016 Olympic Games in Rio de Janeiro March 24, 2015. As part of its Olympic bid, Rio promised to clean up 80 percent of the bay for the games. But local government officials have already admitted that a cleanup by 2016 is not achievable. Despite millions of dollars of investment over the years, the bay still stinks of sewage. Sailors who visited the city for test events complained of a floating sofa and a dead dog in the water. (Photo by Ricardo Moraes/Reuters)

Aerial view of Skanderbeg Square in Tirana, lit with Christmas decorations and surrounded by an open Christmas market on December 29, 2021. (Photo by Gent Shkullaku/AFP Photo)

Damselflies covered in dew rest on a wild flower by the Po River, northern Italy on August 15, 2016. (Photo by Alberto Ghizzi Panizza/Barcroft Images)

Australian professional boxer Ebanie Bridges at the weigh-in ahead of their IBF World Bantamweight Title fight against Shannon O'Connell during the weigh in at Aspire, Leeds, United Kingdom on Friday, December 9, 2022. (Photo by Tim Goode/PA Wire)

A huge supercell dominates the Texas skyline like an atomic bomb explosion on April 11, 2015 in Lubbock, Texas. A huge supercell dominates the Texas skyline like an atomic bomb explosion. These incredible images were taken on April 11th, by photographer Darin Kuntz who has spent in his entire life in so-called Tornado Alley. And Darin confirmed that he snapped the storm standing in his backyard in Lubbock, Texas. (Photo by Darin Kuntz/Barcroft Media)