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

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

This life-size monument honors the legacy of a famous literary feline.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

These Victorian era devil sculptures were designed to spite a local vicar.

According to legend, this tomb holds the secrets to time travel.

The plunge pool is a surviving relic of a rowdy royal residence.

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

The taxidermied remains of a once-great parrot.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

A measuring mishap led to these artificial stone ladies losing their stomachs.

This historic building displays the remains of a victim of the devastating 14th-century plague.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

This small collection of rare books was uniquely locked up for safe keeping.

The ritual has been performed uninterrupted for nearly 700 years.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

Black cat statues guard this temple-like Egyptian revival factory.

This one has sailed five times as far as Sir Francis Drake's famous ship.

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

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

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

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.