A replica of the decorated wooden pillars Viking sailors threw overboard when finding new places to establish a settlement.

The trailblazing Swedish businesswoman created a beloved minty candy called polkagris.

Former hunting lodge of a duke who was an avid collector of impressionist works.

This is the oldest Roman-made bridge in the city still existing in its original state.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The world's second-largest sundial, made entirely out of stone.

This massive monument towers over the city as a constant reminder of the lives lost during Algeria's hard-won war for independence.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

Take a ride back in time with a steam locomotive trip through Eritrea’s mountainous countryside.

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

Pilgrimage site for star-crossed lovers.

This curious, round temple is the oldest still-standing marble building in Rome.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

The "Great Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This cheese shop also houses a museum devoted to Dutch dairy.

The cheese slicer may be a Norwegian invention, but the biggest ones in the world are found in Sweden.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

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 tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

The most powerful waterfall in all of Europe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Walk in the footsteps of the gods and straddle two tectonic plates.