The largest stone circle in the world has ended up bringing up more questions than it has answered.

The only pub in the world surrounded by an ancient stone circle.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Less a museum than a bizarre fantasy world created by artists and engineers.

The little-known second castle that William the Conqueror built in York.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

A century-old tradition has culminated in a small but singular collection of feline effigies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A display of magnificent stained glass windows is the first exhibit of its kind.