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

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

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

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

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

The celebrated eyesore created by starry-eyed sweethearts.

The world's longest known cave system.

The magic's in the hole!

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

France's most famous cemetery, with some of its most curious tombs.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A hotel and restaurant serving as the mecca of kitsch.

A walk through the historic city center, under the streets of Seattle.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Macabre astrological automaton clock dating to the late 1400s.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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