6. Carlsbad Caverns Show Caves, USA
The primary attraction of Carlsbad Caverns National Park in New Mexico, Carlsbad Caverns show cave is a natural limestone chamber which is the twenty-eighth largest in the world and fifth largest chamber in North America with a length of almost 4,000 feet, width of 625 feet and height of 255 feet. There’s a huge number of calcite formations as columns and stalactites. One of the most amazing caves in the world Carlsbad Caverns receives nearly 407,211 visitors every year.
