The 50 Best US Tourist Attractions You've Never Heard Of

Each state has its iconic tourist attractions, but there are also many interesting locations that fly under the radar.

Everyone has heard of the Empire State Building in New York, but do you know about Upstate New York's Letchworth State Park, unofficially dubbed the Grand Canyon of the East? How about the Lost Sea in Tennessee, which is the country's largest underground lake?

We've put together a list of the lesser-known tourist attraction in every state. While some of these places have a significant amount of visitors each year, they are hidden gems to many out-of-state travelers.