A museum marks and documents the site of the Titanic's launch.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

The modern birthplace of Irish freedom.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

This astronomical clock is the second oldest in England.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

This skewed English house has looked like it's going to fall over for centuries.

The Tudor-style cottage in the middle of the square is not quite what it seems.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

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

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.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Unknown to many, this is where items not displayed in a Dutch history of science museum are held.

This early 19th-century graveyard is the final resting place of Vincent van Gogh's mother.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

The tallest mountain in mainland Netherlands isn't actually very tall.