Crystal Cave

Located in Put-in-Bay, Ohio, Crystal Cave allows visitors to step directly inside the world's largest geode. The cave cavity is lined with stunning, massive celestite crystal formations that create a rare underground experience.

Viewer sentiment is split between enthusiasm and disappointment, with many fondly recalling visits and comparing the cave to Superman's lair. However, several commenters complained that the attraction is too small and overpriced, while others questioned its claim as the world's largest geode compared to sites in Mexico.