Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

This church houses the “incorrupt” body of its founding Bishop.

This museum pays tribute to the Cherokee leader who created a written language for his people.

Victorian-era Egyptomania left its mark on this Nashville landmark.

Over 200 people were buried here with only a small stone to mark their final resting place.

This stone memorial pays tribute to a massive shipwreck which was sadly overshadowed by the death of John Wilkes Booth.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

A bronze sculpture honors the 12 black students who attended the first integrated public high school in the segregated South.

These early tent-shaped grave coverings are unique to Appalachia.

The site of the one of the most deadly train wrecks in American history.

The world's largest collection of porcelain "veilleuses-theiere," or night light teapots, includes four that belonged to Napoleon.

This simple, broken column marks the final resting place of one of America's most famous explorers.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

This homegrown adoption center offers a wonderland of feline companionship.

The small cave that housed Tennessee's "first citizen."