Australia's largest medical museum featuring a 19th-century pharmacy.

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

Banksy gives themself artistic license with this piece of London street art.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

Famously misunderstood wonder of the ancient world

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

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 grassy pyramid named after a French battle.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

A beautiful maze marks where three countries meet.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

The attic of a four-century-old canal house hides a clandestine church.

The history and future of cannabis.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Two stunning 17th-century libraries and a cabinet of curiosities.

A giant interactive periodic table with real samples of the elements.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

A hidden art gallery in an abandoned Warsaw fort.