The 50 best US tourist attractions you've never heard of

Each state has its iconic landmarks, but there are plenty of attractions that fly under the radar.

New York has the Empire State Building, but it's also home to Letchworth State Park, unofficially known as the "Grand Canyon of the East."

We've rounded up the most worthwhile but lesser-known tourist attraction in every state.

While some of these places have a significant amount of visitors each year, they remain hidden gems to many out-of-state travelers.

An earlier version of this post was written by Jill Comoletti and Eliza McKelvey.