An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

These otherworldly limestone formations jut out from the Kansas prairie.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Town not known for anything except its strange name.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This sidewalk tribute honors Colorado's great culinary creation.

The world's only museum devoted solely to the art and collection of action figures.