The only museum in the world dedicated to the history of sprint car racing, next to one of the country's most historic dirt tracks.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

The nearly 120-year-old piece of pork wears a brass collar and was once a man's "pet ham."

This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

This elaborate towering structure was once famed for its revolutionary height.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A local prank turned town icon.

What’s a sure fire way to end up in jail in New York in the 1920s? Peddling bad moonshine.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

A Manhattan Episcopal church with an eerie underground crypt.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

This mechanical wonder towers above a river in Michigan's capital city.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.