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

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

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

These ornate arches show how the course of the River Thames has changed.

A statue of the original Pearly King is hidden in a church's crypt.

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

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

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

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The last four extravagant street signs of London's historic banking street.

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

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

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

The unbelievably opulent home built for an infamous newspaperman.

The shortest river in America flows for just 201 feet.