The most powerful waterfall in all of Europe.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A diminutive statue that was inspired by the sculptor's own daughter.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

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

The hallucinogenic center of the ancient world.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.