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

These morbid carvings remind churchgoers of the inevitability of death.

A student driver's nightmare.

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

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

This secluded walkway overlooks a magnificently wild London green space.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

An unsanctioned shrine that sprung up outside the late singer's home is causing a stir in London's Highgate neighborhood.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

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

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

You will not be able to miss this building.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

Don't worry, they don't use antique scissors.

This former medical factory gives home to cutting edge arts in the shadow of a gas works.

This studio was home to David Bowie's first single, even if it did turn away the Beatles.

Where condemned pirates met their grisly end at the gallows on the River Thames.

A cluttered and astounding collection of antiquities and curiosities.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

Public access to clean drinking water was an instant hit among the masses.