"Purveyors of traditional sweets and vintage treats."

The remains of Crystal Palace Great Exhibition of 1851.

Remnants of a Victorian garden feature sitting in public woodland.

A student driver's nightmare.

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

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

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

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

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

An exquisite tunnel of cascading flowers.

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

On Japan's Tashirojima Island, cats are king.

Ice cream stand, snack bar, and time capsule of milk conveyance.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Russian history in San Francisco.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Half of a house.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.