Caves can be very interesting place to visit. For primitive peoples the caves served for different purposes, but today all over the world, most of the caves turned to be a popular place among tourists. In this article we present some of the caves you should visit.
Cave of the Crystals in Mexico
Cave of the Crystals is one of the greatest natural wonders in the world and is located deep beneath the Mexican desert. This place has some of the largest crystals that have not been seen on Earth, and was found by the miners who were digging a tunnel for more than 12 years ago.