The fairy tale castle of the "fairy-tale king."

This bridge was constructed from the rubble of the infamous Bastille.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

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

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

Be(w)ar(e) the moat around this historic Czech castle.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Baroque celebration of the end of the Great Plague of Vienna.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

Britain's only herd of free-ranging reindeer.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

A black cat protests the City Guild in Riga's Old Town.

The oldest housing complex in Riga is a mini timeline of architectural trends.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Five candy-colored villages on the Italian Riviera.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

A close look reveals that the Scottish monument is just slightly off-kilter.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.