A little slice of Japan and its aesthetics in London's Holland Park.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

360° views of the city plus five floors of optical illusions and hands-on science.

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

A 30-acre garden inspired by the principles of modern physics.

Hidden beneath the streets of London is a secret subway that only carried mail.

The sign at the garden gate reads: "These Plants Can Kill."

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

The wartime boat shelter now doubles as an underground concert hall where musicians play on rafts along the waterway.