Tucked away behind the mansions of Mayfair, this picturesque garden is a hidden London treasure with a spooky past.

Some of the best renditions of traditional British dishes can be found on the site of a 15th-century inn.

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

This five-star hotel was originally a swanky parking garage.

Tucked away in a London Tube station, this 1920s linear clock shows the time across the world all at once.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

Historic cuisine meets fine dining in a hotel-restaurant overlooking Hyde Park.

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

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

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

The taxidermied remains of a once-great parrot.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

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

Dictionary Johnson’s favorite feline.

One of the oldest remaining Catholic churches in England is home to the hand of a 7th-century saint.

Down a pint of ale where the Bishop of Ely's servants slept in 1546.

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

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A haunting monument dedicated to the Royal Naval Air Service and the Fleet Air Arm.

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

Once a 19th-century refuge for immigrants, this pub has hosted performances by Amy Winehouse and the Arctic Monkeys.