Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

America's only nuclear missile silo open to the public.

The fairy tale castle of the "fairy-tale king."

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A Hawaiian stairway to heaven—that you can't climb.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

Race through the maze, get your name on the sign.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

Miniature art that tells an enormous story.

This church on a Tohono O'Odham reservation has stood since 1797.

The fading, forgotten remains of a once bright and booming factory.