A stately palace has been converted into the world's largest cannabis museum.

One of Europe's largest supercomputers is housed inside of a disused chapel.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This huge concrete map of Scotland was built as a thank you gift from a Polish soldier.

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

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

These fantastically named natural pools look like something out of a Scottish myth.

A lecture hall sink once used by Einstein and other noted physicists is now regarded as a strange science relic.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

The world's first interactive human body museum also serves as a chair for a giant orange man.

Cat art as far as the eye can see.

Peek through a transparent pyramid and drink in the mountain made of books.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

This conservatory allows a little bit of the tropics to thrive in the middle of a major Canadian city.

Traditional 15th century Chinese garden in the middle of Vancouver.

Copenhagen's celebrated theme park and gardens.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

A bus with a butt and biceps to put Olympic athletes to shame.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Macabre astrological automaton clock dating to the late 1400s.

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

This former quarry is now a picturesque gorge that hides a sunken lake.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.