The London pub overlooks where the Mayflower was moored before setting sail for the New World.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

The television series' iconic giant foot was borrowed from this classical painting.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

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

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A mysterious artist-run cabinet of curiosities and library.

This coffee shop lies hidden beneath a historic church.

The remains of Crystal Palace Great Exhibition of 1851.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

A cluttered and astounding collection of antiquities and curiosities.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

Hear the quietest sound from across the dome.

The final resting place to 300 Victorian-era pets hides inside the city park.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

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