A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

The monster at the center of the Darwin Center Spirit Collection.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

Repository for more than 22 million pickled specimens.

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

A collection dedicated to the treatment of disease, held in London's oldest hospital.

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

The remains of Crystal Palace Great Exhibition of 1851.

A cluttered and astounding collection of antiquities and curiosities.

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

A mysterious artist-run cabinet of curiosities and library.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

The anatomical-pathological collection of a man who changed surgery.

Remnants of a Victorian garden feature sitting in public woodland.

Catacombs turned marketplace.

The largest of London's subterranean rivers and once a mad, bad center of London life.

A historic house left in "dramatic still life."

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

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

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

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

Rebuilt remains of a temple to Roman god Mithras.

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