This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

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.

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

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

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

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

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

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

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

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

London's old-school healing garden.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

An unusual round church in London with a Templar past.

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.

Charles Babbage's proto-computer, painstakingly brought to life.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

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

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

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The cedar tree in Highgate Cemetery earned its title by accident.

The first archaeological site discovered by aerial photography.