Scattered throughout London are ancient remnants of the city's former bounding wall.

London's smallest police station is barely the size of a phone booth.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A tongue-in-cheek arcade where the games are based on everyday life.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

Once the largest gravity dam in the world.

A monument to the winner of the 1946 Boston Marathon, Greek runner Stylianos Kyriakides.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

A comic book store got the road by its shop officially renamed after Superman's girlfriend.

The Burnside Fountain and its questionable interpretation.

Only the original archway remains from the building where a false cry of "fire" started a panic that claimed more than 70 lives on Christmas Eve in 1913.