This museum houses an imposing skeleton army comprised of creatures great and small.

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

Macabre astrological automaton clock dating to the late 1400s.

The atmospheric road was never meant to be so creepy.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

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

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

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The history and future of cannabis.

1513 Turkish world map, full of European state secrets and snarky commentary.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

Where the lovelorn find a home for their sentimental keepsakes.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

Pilgrimage site for star-crossed lovers.

Fortified medieval tower house with lovely roof garden.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Ancient serpentine sacrifice holder that has stood the test of time.