Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The corpse bride of Portugal.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

Building owners can take out tiles for free at this repository for historic building materials.

A hidden three-foot-wide house separates these two regal churches.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.

This tower once served as a radar station during the Cold War.

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

Nestled in the mountains of Portugal is a tiny village made almost entirely of schist.

The "Little Ones," show Portugal in full miniature splendor.

One of the largest Roman settlements in Portugal.

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

Explore a remarkable 35-hectare sculpture garden located an hour outside of Lisbon.

One man's remarkable private collection of art from around the world.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

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

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

These rock drawings in the Côa Valley also create an ancient optical illusion.

An architectural gem nestled into a promontory overlooking a prehistoric landscape.