Pompeii's less famous neighbor is still revealing her secrets.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

Notorious artist squat renovated into legal studios.

The celebrated eyesore created by starry-eyed sweethearts.

The heads of two giant mythological water horses honor Scotland's horselord past.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

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

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

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

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

Marking the ancient boundaries of asylum around Beverley Minster.

The world's first military tank was designed in this English city amid the stalemate of WWI trench warfare.

Modern commuters still pass through this 2,000-year-old Roman archway.

An abandoned 18th century manse looks like something out of an Indiana Jones movie.

The near loss of the stately fireplaces at this medieval castle spawned some of Britain's most crucial historic preservation laws.

The last working windmill in the U.K. that has eight sails.