This spooky statue sits outside a famous Prague theater.

Macabre astrological automaton clock dating to the late 1400s.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A surreal statue honoring Prague's favorite literary son.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

One of Europe's oldest libraries.

The beautiful non-repeating pattern honors the Oxford professor who discovered it.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

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

Giant, friendly pelicans in Central London, the most unlikely of places.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Eighty million natural history specimens call this gargantuan museum home.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The history and future of cannabis.

The largest greenhouse in the world is home to over one million types of plants.