This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

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

The last resting place of the famous Native American princess is marked by a haunting monument.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The commemorative stone column conceals a secret laboratory.

An incarceration museum on the spot of possibly the oldest prison in England.

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

This ancient Egyptian obelisk still bears the wounds of World War I.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Order bagels and lox from an iconic Jewish delicatessen with nearly a century of history behind it.

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

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

Black cat statues guard this temple-like Egyptian revival factory.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

At this small museum, visitors can view artifacts from the only battlefield in London during the War of the Roses.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.