London's smallest police station is barely the size of a phone booth.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

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

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

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

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

This series of Scottish caves has no clear purpose other than baffling historians.

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

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

Rebuilt remains of a temple to Roman god Mithras.

A tongue-in-cheek arcade where the games are based on everyday life.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The world's largest collection of witchcraft regalia.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

These fantastically named natural pools look like something out of a Scottish myth.