A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

An abandoned Cambodian resort that mirrored the downfall of the country as it was happening.

A battle between nature and architecture in the Cambodian jungle.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

The world's oldest bookshop still in operation.

Structure built from the skulls of vanquished foes.

This museum is dedicated to the most famous Irish writers in history.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.

The house where the writer spent his formative years.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

These lesser-known Maltese catacombs date back over 1,700 years.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

A fortified medieval basilica on the Caelian Hill preserves extraordinary frescoes and one of Rome's most beautiful hidden cloisters.

Harlequin costumes, signed scripts, and armor-wearing puppets.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.