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

These delicate sand pyramids look like naturally occurring gothic spires.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

This elegant arc of a waterfall marks a religious turning point.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

These warring psychedelic crags commemorate an unsuccessful military operation.

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

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A whimsical bridge adorned with decorative dragons.

Three wildly colorful calderas top this otherworldly volcano chain.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

Rising from the sea like a stone monster.

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

Sacred Buddhist home of some spiritual monkeys.

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

Oriental bazaar in the heart of Sarajevo.