The chefs at El Diablo use heat generated by an active volcano to cook the food.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

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

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

Single runway interrupted by a busy road that cuts across its middle.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

An unusual but excellent display created in the 1930s as propaganda against the Freemasons.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

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

The facade of this 16th-century building is decorated with carvings of 300 seashells.