A unique exhibit lets blind people experience famous works of art and architecture with their hands.

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

A magnificent, long-abandoned castle built in the wake of the reconquest of Spain.

An automaton perched above an classic clock and watch store

This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

Barça football fans might see the insignia hidden in a church window as a divine sign.

A complimentary beverage is offered to the bodega's resident rodents every day.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

The unexpectedly beloved remnants of a controversial thermal power plant.

This imposing modern citadel started out as a home renovation project.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

A network of hundreds of interconnected wineries in caves hides under the town center.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

This abandoned, turn-of-the-century astronomy hub is now the subject of more photographs than it ever took.

A contemporary art installation housed within a Gothic cathedral.

This colorful statue welcomes visitors to a Barcelona park.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

Peek into a cave of giant, glimmering crystals.

You can soak in three relaxing pools filled daily by the tide.

A celebration of solstice followed by a fiery purging of evils.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.