One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

The watery grave of an impractical idea.

This charming English house was once the home of England's most famous poet.

Stonehenge has nothing on Castlerigg’s views.

Reputedly based on the tomb of Jesus Christ, this crypt is the oldest surviving structure of any cathedral in England.

England's largest white horse isn't even white.

Astonishing rock formations dot the Brimham Moor landscape.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Where Agatha Christie mysteriously disappeared in 1926.

This replica of the Greek structure is in the heart of Nashville.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

This building contains handprints that are well over a century old.

An abandoned town is hidden in Great Smoky Mountains National Park.

The first dish to bounce radio signals off the Moon, it was the forerunner to the U.S. Space Program.