16.Moon Rock

Clearly this isn’t the moon, but the Moon Rock sinkhole made headlines years ago thanks to viral photos of a group of practicing yogis being photographed doing yoga inside the massive sinkhole. Moon Rock is located in Daoxian County, centrally located in China’s Hunan Province. More than 50 yogis descended into the dry sinkhole to really connect with Mother Earth.

Sure, doing yoga in a sinkhole can be relatively easy, but what about tightrope walking over a massive sinkhole?