Mammoth Cave

mammoth cave
Jackie Wheet / Mammoth Cave National Park

In 1866, Cincinnati photographer Charles Waldack snapped the nation’s first cave photos. Some say they may be the first in the world. Practical photography had been around less than 30 years, and while success was uncertain, these photos helped put Mammoth Cave—now a UNESCO World Heritage Site—on the map.

Mammoth Cave is one of the most popular national parks, and a favorite of hikers and families from the tristate area. But how much do you know about the miles of caves in the park?