A Spanish town built into the cliffs.

Bacteria and algae give the salty water its bubblegum hue.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

A modernist church in an ancient village.

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

Week-long block party becomes a competition for the best decorated street.

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

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

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

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

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

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

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

This charming candle shop has been in business since 1789.

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