Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

Rising from the sea like a stone monster.

Puffin enthusiasts flock to Europe's largest seabird cliff, which over one million birds call home.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This stunning concert hall has become a symbol of Iceland's national recovery.

An encyclopedic collection of mammal penises.

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

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A public work of art that also provides some relief from the summer heat.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

Through the colossal entrance to this cave you'll find limestone tubs and an underground waterfall.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

This beautiful medieval Serbian monastery is home to frescoes, peculiar sculptures, and historical curiosities.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.

Structure built from the skulls of vanquished foes.

Serbia's master of striking memorials erected a forgotten, hidden gem in the hills outside a tiny village.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.

A hidden stream deep in the mountains creates one of the largest tufa waterfalls in Serbia.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.