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Xiaozhai Tiankeng – China – 2.171 feet deep
The deepest sinkhole in the world can be found in China. Xiaozhai Tiankeng has a depth of 2.171 feet and is 2.053 feet wide. The hole consists of two craters, the first crater being a lot higher than the second. Both craters are covered with numerous trees and plants, creating a rich ecosystem in the sinkhole. Here you will also find a number of special plant and animal species.
