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

The oldest operating pharmacy in the world features 800-year-old recipes.

Iceland's tribute to its thankless civil servants.

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

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

In between two buildings in Ljubljana, medieval tunnel to nowhere.

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

Strange rumors surround the artist who created these solemn metal guard dogs.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

Macabre museum devoted to historical Viennese murders.

Museum preserving torture methods from the past.

Europe's official "zero-level," the equator of elevation.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The cemetery was built for the Spanish colonial elite, but its most famous residents were all buried in unmarked graves.

A vast personal collection of World War II artifacts unearthed over many years by a father-son duo.

Bohol's unusually shaped hills turn brown in the summer months.

A patch of Philippines forest devoted to saving the lives of an emotionally sensitive species of googly-eyed primates.

This church is named for one of the most dramatic tales in the early Christian church.