A historic arboretum and non-conformist, non-denominational park cemetery.

This hidden green space is the city's second largest conservatory.

A collection of machines designed to break things for science.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

A quiet memorial to those who died saving others in the heart of the City of London.

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

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

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

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

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

The taxidermied remains of a once-great parrot.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

Dictionary Johnson’s favorite feline.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

One part local history, 99 parts gruesome haunted house.

These marks in Myddelton Passage aren't your run-of-the-mill vandalism, and they weren't made by your typical vandal.

This Underground station has been a popular filming location for decades, even before it closed.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

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

A tongue-in-cheek arcade where the games are based on everyday life.

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

An unassuming London park is actually a pilgrimage site for modern clowns.