A remarkably opulent mansion with a tragic history.

This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

Once one of the most polluted caves in America, now an environmental success story and a museum dedicated to caves.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

A unique attraction and museum dedicated to exploring iconic roadside structures.

This artsy public restroom is shaped like a giant john.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

See the motorcycles that launched the stuntman to fame and the gear that saved his life.