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

A place steeped in history that may be best known as the set of a 1960 film.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

The world's largest wooden structure.

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

This liminal destination combines creaky carnival rides, a classic car museum, and luck-of-the-draw flea market finds surrounded by dust and drive-in movie screens.

In 1952, a strange encounter in the woods of West Virginia led to the legend of a 10-foot-tall monster with glowing eyes and a distinctive style.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

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

This unreal Portuguese palace looks as though it's made from a pile of different castles.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

Some 4,000 individual tiles make up this striking blue billboard from the golden age of air travel.

Picturesque intersection of witchcraft and ancient Christianity.

This giant sculpture made of trash is a critique of society's wastefulness.

Ancient catacombs form the foundation for this Rococo orgy of a church.

The stunning interior of this Gothic church is covered in ornate gold details.