This luxury shopping lane has been protected by its own tiny police force for over a century.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

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

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

Collection dedicated to brands, packaging and advertising.

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

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

This museum inside a museum tells the story of London's timepieces.

This king penguin is a knighted brigadier of the Norwegian Army.

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

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

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Putting the "mod" in "modular" since 2000.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

A Roman spa buried deep beneath the City of London.

This secluded walkway overlooks a magnificently wild London green space.

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

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

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

This network of narrow, medieval passages has the most delightful name.