England's most famous front door has an accidental doppelganger.

It's a mystery why these remains were found with no traces of their bodies in sight.

London's marvelous wildfowl reserve along the Thames.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

A recently restored Shoreditch landmark with ties to Jack the Ripper.

A faded reminder of what was once a common sight in London during the Blitz.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

High-end antique collection housed in a centuries-old church.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

The commemorative stone column conceals a secret laboratory.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

These ornate arches show how the course of the River Thames has changed.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

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

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

This coffee shop lies hidden beneath a historic church.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

A memorial to a dog that inspired rioting in the streets of London.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

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