![Frozen Niagara in Mammoth Cave National Park, Kentucky,](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2022/12/Depositphotos_420132604_S.jpg?resize=384%2C320&ssl=1)
caves Archive
![Frozen Niagara in Mammoth Cave National Park, Kentucky,](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2022/12/Depositphotos_420132604_S.jpg?resize=384%2C320&ssl=1)
![Niagara Cave](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2022/12/niagaracave.jpg?resize=384%2C320&ssl=1)
Niagara Cave, Minnesota
![El Nido de Quetzalcóatl](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2022/07/El-Nido-de-Quetzalcoatl.jpg?resize=384%2C320&ssl=1)
El Nido de Quetzalcoatl: Mexico’s Beautiful Snake Nest
![caverns restaurant](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2022/05/92ce3236-cb44-4270-96e8-d012ddf2b7f2e96b47435124a64cbe_72906268_528464758002252_7811125384428355436_n.jpg?resize=384%2C320&ssl=1)
Grand Canyon Caverns: Arizona’s Bone Dry Cave
![DeSoto Caverns](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2022/02/51401104993_16d3ec96aa_b.jpg?resize=384%2C320&ssl=1)
DeSoto Caverns: Alabama’s Grand Cave
![Kaaterskill Falls](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/12/50446919047_0607a3a03c_b.jpg?resize=384%2C320&ssl=1)
Upstate New York: A Northern Retreat for Nature Lovers
![](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/12/cave-scaled.jpg?resize=384%2C320&ssl=1)
Australia’s Crystal Castle: The Amethyst Crystal Cave
![Fantastic caverns](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/10/fantastic-caverns.jpg?resize=384%2C320&ssl=1)
Fantastic Caverns: Missouri’s Stunning Cave
![Nottingham Castle](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/10/p03fggqb.jpg?resize=384%2C320&ssl=1)
Nottingham, England: A Medieval City Built Upon Mysterious Caves
![Forbidden Caverns](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/09/5904779732_9897333448_k.jpg?resize=384%2C320&ssl=1)
Forbidden Caverns: Tennessee’s Haunting Subterranean Cave
![Caves of Sonora](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/01/12110583804_aeff66e528_b.jpg?resize=384%2C320&ssl=1)
Caverns of Sonora: Sonora’s Secret Cave
![Los Tres Ojos](https://i0.wp.com/unusualplaces.org/wp-content/uploads/2021/01/Tres-Ojos-4_opt.jpg?resize=384%2C320&ssl=1)