A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

This space rock fragment is one of the only meteors to have ever struck a human.

A collection of huge Pre-Colombian structures in Alabama.

One Confederate statue that accurately reflects the ugliness of its subject.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

An enormous park-like oasis, full of famous Chicagoans' graves.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Less a museum than a bizarre fantasy world created by artists and engineers.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

Home to a protest movement, a bombing, and a dramatic change in labor history.