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

An abandoned Indian-inspired mansion.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

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

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

Village situated on a narrow volcanic escarpment.

An architect transformed this abandoned cement factory into his castle-like workshop.

Stunning Roman aqueduct used for 1900 years and still standing.

The oldest Roman lighthouse still in use.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

Mine shafts and hard pastries await visitors at this massive mountain of salt.

A once-secret library of Freemason history in Catalonia.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

This Funeral Hearse Museum represents the finest in cadaver transportation.

A Romanesque tower appears when water levels drop.

A Spanish forest is filled with mysterious stone carvings.

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

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

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

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

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

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.