The Heavenly Pit in China is the world's deepest sinkhole. This awe-inspiring geological marvel plunges a staggering 2,172 feet (662 meters) into the earth. It could swallow the Empire State Building whole, with plenty of space to spare! A total of 1,285 plant species, among them the ginkgo, along with various rare animals such as the clouded leopard and the Chinese Giant Salamander, have been discovered in the sinkhole. Due to its remote location, many plant and animal species found within the