These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

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

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

Mountain where Jesus was first tempted by the Devil.

The Gaudí-inspired building that was the start of Terrassenc modernism.

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

Living towers made of people that are now recognized by UNESCO.

Museum of amazing old toys and automata.

Replica of Seville, Spains famous Giralda, a former minaret converted into a bell tower.

This amazing piece of modern art honors the hundreds of fishermen killed during Cambrils' "year of misfortunes."

Long tunnels run under the ancient chariot racing circuit to the tower.

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

Stunning Roman aqueduct used for 1900 years and still standing.