Remnants of a Victorian garden feature sitting in public woodland.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

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

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.

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

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

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

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

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

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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.

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This South London cemetery holds the remains of more than 15,000 people.

Northern Ireland's Brobdingnagian stepping stones.

A kaleidoscopic warehouse-maze of handmade neon signs.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

An unusual round church in London with a Templar past.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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