A haunting collection of sunken wooden barges litters this Italian river bend.

Atop this former dutch railway office sits an interstellar work of art.

This collection of ancient, mountaintop, underground tombs was once hidden by decades of bloodshed.

Eat like a bird in a bamboo nest.

A witch wreaks ruinous revenge on this ancient church with her "enchanted leg."

Three large boulders covered in mysterious carvings and graffiti.

A quartet of brightly colored mythical beasts stand sentry at this gateway.

These two springs are tied to several legends, one of which involves the travels of Saint Olof.

An unsettling shrine dedicated to the ravenous beast that prowled 18th-century France.

Where Mary Shelley’s "Frankenstein" and John William Polidori's "The Vampyre" were born.

A trove of ridiculously valuable prints and manuscripts under one roof.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

A naturally beautiful, seemingly bottomless deep blue spring.

Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

Structure built from the skulls of vanquished foes.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The first museum in the world devoted to sexual gadgetry.

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