Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A symbol for the opposition to nuclear power around the world.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

This Danish castle is supposedly haunted by a woman too independent to not be a witch.

Nordic giants resurrected from the sea and restored to their former greatness.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

A collection of noses tucked inside an art museum reveals how times have changed.

Old Danish castle immortalized in Shakespeare's Hamlet.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Six beautiful wooden giants are hidden around Copenhagen.

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

Copenhagen's celebrated theme park and gardens.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The oldest stone house in Paris was built by its most famous alchemist.

France's most famous cemetery, with some of its most curious tombs.