Carlsbad Caverns National Park, USA
Carlsbad Caverns National Park is located in the Chihuahua Desert of New Mexico. In 1995, these caves were listed by UNESCO as a World Natural Heritage Site.
The Carlsbad Caverns were formed millions of years ago, as a result of the effects of corrosive gases that formed from the vast deposits of oil and natural gas beneath the bottom of what was once the sea. Cowboy Jim White accidentally discovered the caves in 1898. There are more than 100 Carlsbad Caverns, including the deepest karst cave in the United States, Leguria Cave, at 489 meters.
Very beautiful are the stalactites, stalagmites and formations of calcite and aragonite in the Great Hall, which is the most extensive in the complex - 3.3 hectares; the Queen's Hall is the most beautiful in the entire complex.