These three pillboxes still remain as a witness of the Spanish Civil War in a park of Madrid.

Remains of the lost church hide beneath this Spanish Parliament building.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

A subterranean relic of the Spanish Civil War hides below this picturesque park.

This stop on the Camino de Santiago stands high above the underwater ruins of a medieval town.

Eccentric sculpture garden brings Basque mythology to life.

This remarkable museum sprung from one of the most important prehistoric archaeological sites in the world.

The cathedral of a controversial, conservative, schismatic sect that declared the Catholic Church heretical and founded its own succession of popes.

Now a pile of ruins and rubble, this was a lovely mountain town as recently as 1960.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

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

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Village situated on a narrow volcanic escarpment.

Wonderland replication in progress by one persistent man.

An ancient Egyptian temple in the middle of Madrid, Spain.

This museum was invented in a novel before being made real by the author.

The most metal church of all time was built in record time because of an international, pious pissing contest.

A Bicycle Path in the Sky.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Little Red Lighthouse under the George Washington Bridge.

An unassuming secret door once led to a legendary watering hole.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.