An enormous concrete structure built over a nuclear crater.

This largely forgotten piece of Cold War history stands hidden in the woods just north of the Mississippi Gulf Coast.

One extremely determined man's homemade universe.

Eternal resting place of the grave robber and murderer who served as inspiration for many of cinema’s famous madmen.

This cave holds a surprisingly colorful variety of geological oddities.

Inside this magical collection, you can buy recipes cooked up by church ladies, motorcycle clubs, and clowns.

The largest collection of historical roller skates in the world.

In Grand Rapids, Michigan, a marker honors the creation story of a proud fictional culture.

This solemn facility remembers the cruel effort to compel Native American children to relinquish their culture.

In the main dining room, a nine-ton boulder caps the fireplace designed by local architect Earl Young.

Detroit housing collective working to create an "environment for revolutionary change."

It leads to a former hospital’s old root cellar.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A museum dedicated to the dead and the tools used to usher them into the afterlife.

The only surviving prototype for Buckminster Fuller's house of the future.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Largest magic museum in the United States with more than half a million pieces of memorabilia.

Calidum et Deliciose Succosum!

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

Three legendary, living albino buffalo roaming their pastures for all to see.

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

The remnants of an early American attempt at missile defense.

The world's first commercial spaceport is a disappointment of cosmic proportions.

A museum devoted entirely to the rattlesnakes and snake-related art.