The first declared National Monument in the United States.

Visit a memorial to the Wesley brothers, one the founder of Methodism and one a writer of over 6,500 hymns.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

It's a pretty creepy lock-up.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

It's been called “Detroit’s largest art object.”

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

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

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

A permanent open-air exhibition of stunning, and inherently American, public art.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

One of the first intercontinental ballistic missile sites in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This towering wooden Sasquatch was carved with a chainsaw.

The first mosque in the world to receive electricity.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

Mining caused an asbestos emergency in this small town.