A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

An enormous park-like oasis, full of famous Chicagoans' graves.

Before this rocky hill was home to a chapel, it was used as a lookout by Romans and Moors.

The history of drinking is told through 1,800 cups, chalices, and glasses at this exhibit.

A tombstone on the grounds of the royal castle marks the burial site of a Swedish king's beloved dog.

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

The largest cave on the island of Menorca was likely the site of Iron Age rites and rituals.

A phenomenon that appears to make gravity work in reverse has been attributed to jinn, supernatural spirits from Arabian folklore.

A subterranean playground in an abandoned slate mine.

This hidden courtyard in the Andorran capital hosts a unique contemporary sculpture park.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Images of neighbors past and present guard the streets of this charming alpine village.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

Everything in this two-story house—down to the mounted deer head on the wall—was carefully crafted from concrete.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

A symbolic graveyard for the villages that perished during the Nazi invasion of Belarus.

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

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Entire apothecaries are on display at this Lisbon museum, which explores the history of medicine.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.