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.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Peace Park and the Atomic Bomb Dome.

Approximately 300 million years ago, a massive coral reef existed in what is now the largest limestone cave in Japan.

An eerie reminder to the horrors of World War II.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

One of downtown Berlin's last reminders of its Communist past.

A fascinating insight into daily life in the Eastern Bloc.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

A village on the east coast of England that has almost completely eroded into the North Sea.

A chaotic collection of coin-operated slot machines designed to delight and disturb in equal measure.

A rare example of World War I trenches from the British front.

A moving memorial to the fallen and missing from WWI trenches.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A little sculpture with a large wardrobe.

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

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

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

The ruins of a castle sat decaying in this park for years before a massive renovation restored this area to its past beauty.