The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A open air theatre built on a cliff by an eccentric British woman.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

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

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

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

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Hidden beneath the streets of London is a secret subway that only carried mail.

The sign at the garden gate reads: "These Plants Can Kill."

This incredible second-century sculpture depicts a trio of gods worshipped by the ancient Romans.

A legendary speakeasy bookstore returns from the brink.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Elevated freight railway turned wildly successful urban park.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

This unique building in the main square stands out among the city's typically Baroque architecture.