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

This network of narrow, medieval passages has the most delightful name.

An incredibly well-preserved piece of ninth-century Viking poop.

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

One of the shortest streets in York has an especially odd name.

Follow the original medieval paths that wind through this intriguing section of the city.

Walk through a clothing store, across a courtyard, and up several flights of stairs for delicious coffee with a side of beautiful views.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

Once upon a time these giant concrete tanks were used by local fishermen to clean their wild-caught mussels.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A naturally mummified 2,000-year-old man.

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.

Eighty million natural history specimens call this gargantuan museum home.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.