The biggest and deepest Cold War bunker open to the public can be found in southeast England.

The Isle of Wight’s “Island Line” serviced by former London Underground trains from the 1930s.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

A century-long search for a church that was never there.

Home to Hollywood history and a very special salt crystal.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

The park that the Chicago Stockyards built.

This massive roadside mascot was the first version of the giant to illustrate his butt.

Former hotel turned into haunted playground.

Elaborate hand-carved wooden clocks two brothers made in their spare time are on display at this handsome little museum.

The world's largest covered wagon is piloted by a giant Lincoln lawyer.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

Inside this magical collection, you can buy recipes cooked up by church ladies, motorcycle clubs, and clowns.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

Erosion and time have created a naturally-formed water park.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

Eight feet in diameter and more than 24 feet around.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

The “American Gothic" artist's largest works hang in an Iowa State University library.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.