A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

London's smallest police station is barely the size of a phone booth.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The remains of Crystal Palace Great Exhibition of 1851.

A hands-off space for graffiti artists to hone and display their skills.

Rebuilt remains of a temple to Roman god Mithras.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

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 1,215-foot tunnel transports pedestrians beneath the River Thames.

An unusual round church in London with a Templar past.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Eighty million natural history specimens call this gargantuan museum home.

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The historic villages and towns of Suffolk are filled with wonky wooden beam houses painted an unusual shade of pink. Unknown to many though, this sweet shade has a bloody history.

A large piece of modern art makes this roundabout the only one in the world with its own laser.

A misunderstanding gave this 18th-century racehorse a most amusing name.

This striking steel sculpture transforms environmental data into art.

A remarkable medieval structure born from a 14th-century disaster.

A strange and ancient landscape hides the dark, cavernous remains of a 5,000-year-old flint mine.

The smallest pub in Britain was once a cabinet of curiosities and it still has the dead cat to prove it.

Long before wi-fi, this public seat provided the wonder of being online while outdoors.