The highest point in Louisiana, Driskill Mountain at 535 feet above sea level.

A quirky mishmash of Route 66 memorabilia and other throwbacks from the past.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

Some of New York's best tacos can be found in the back of an unassuming bodega in Queens.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

The homestead of American patriot John Adams.

The ruins of one of the first railroads in the U.S. lie hidden within a neighborhood cul-de-sac.

The only remaining historic maritime signal station in the United States.

Its unique collection details the history of the state's svelte railroads.

A remarkably opulent mansion with a tragic history.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

An abandoned amusement park based on the popular 1940s Red Ryder comic strip.

When life gave this firefighter a forest fire, he made a rough-hewn sculpture park using a chainsaw.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

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

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

Owned by Native American women, this brewery is a celebration of indigenous culture in the American Southwest.

Volunteers spent years restoring a vintage steam locomotive to operating condition.

The only Native American comic shop in the world.