The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The last four extravagant street signs of London's historic banking street.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

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

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.

Remnants of a 4th-century church with vivid medieval frescoes and ancient sarcophagi hide beneath this old basilica.

The relics of dozens of martyrs are stored in a single chapel.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

A rare opportunity to drive across the ocean floor.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.