This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Cliffside houses provide a spectacular view from their perch above the valley.

Turntable anonymously received orphans, alms, and groceries.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

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

An ancient Egyptian temple in the middle of Madrid, Spain.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

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

This cemetery features modernist statues as strange as its name.

A beautiful but toxic fountain of mercury.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

This beautiful site is where the first transatlantic telegraph was sent from.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The modern birthplace of Irish freedom.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

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

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

This ancient Irish tower could easily have stood in for Rapunzel's prison.