A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

Wander among the abandoned ruins of this once-powerful medieval town.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

These fantastically named natural pools look like something out of a Scottish myth.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

A floating cat sanctuary on an Amsterdam canal.

The world's only museum devoted to the wonders of fluorescence.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This winding road through an Italian canyon may be the most scenic drive in the world.

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

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