This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A historic house left in "dramatic still life."

This Michelin-starred restaurant sheds light on a rare period of cultural and culinary tolerance in Cordoba’s past.

This coffee shop lies hidden beneath a historic church.

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

This bewitching Babylonian goddess haunts a hallway of the British Museum.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

Taxidermied animals galore, by appointment only.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

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

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

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Artists and musicians now rule over this former rail station.

London's old-school healing garden.

The television series' iconic giant foot was borrowed from this classical painting.

This 1920s Dutch barge is now a floating bookstore.

Catacombs turned marketplace.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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.

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.