Founded in 1941, encompasses 83 miÂ².
Unknown artists dating from 15,000 BC, France
5,354 feet deep, Salzburg, Austria
352 miles. Kentucky, U.S.
Bayville, New Jersey, U.S.A.
These limestone caves are a popular tourist attraction with unusual stalactite formations and millions of glow worms.
Ozark Mountain, diverse habitat including oak-hickory forest, grassland and prairie
Hideaway of the banished nobleman Belarius in the mountains of Wales, from "Cymbeline"
The seat of the spirit of revolution in "Prometheus Unbound", 1820