Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

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

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

Eighty million natural history specimens call this gargantuan museum home.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

Catacombs turned marketplace.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A historic house left in "dramatic still life."

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

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

A student driver's nightmare.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

Hear the quietest sound from across the dome.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

A fantastic castle rumored to be the birthplace of King Arthur.

Surreal riveted sea forts once protected the Kent shores from German attack.

The curios of pharmacist and collector Henry Wellcome.

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

One part local history, 99 parts gruesome haunted house.

A hands-off space for graffiti artists to hone and display their skills.