Giant, friendly pelicans in Central London, the most unlikely of places.

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

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

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

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

One of the world's largest collections of pathological specimens.

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

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

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.

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

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

Catacombs turned marketplace.

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

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

Rebuilt remains of a temple to Roman god Mithras.

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

The curios of pharmacist and collector Henry Wellcome.

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

An unusual round church in London with a Templar past.

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

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.