The secret wartime bunker built on the platforms of an abandoned Tube station.

A relic of Victorian grandeur hides beneath a busy South London road.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

Eclectic final resting place of the controversial explorer.

Dictionary Johnson’s favorite feline.

A network of concealed passageways lies within a busy London Underground station.

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

The television series' iconic giant foot was borrowed from this classical painting.

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

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

A historic house left in "dramatic still life."

Hear the quietest sound from across the dome.

One part local history, 99 parts gruesome haunted house.

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

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

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

A kaleidoscopic warehouse-maze of handmade neon signs.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This king penguin is a knighted brigadier of the Norwegian Army.

Rotting dome home spotted near Chapel Hill, North Carolina.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

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