Spain, Catalunya, Barcelona, Antoni Gaudi's La Pedrera building, a section of chimney pots on the roof terrace.

Spain, Catalunya, Barcelona, La Pedrera by Antoni Gaudi, full view of the building's facade.

Spain, Catalunya, Barcelona, Antoni Gaudi's La Pedrera building, a section of chimney pots on the roof terrace.

Spain, Catalunya, Barcelona, distant view of La Sagrada Familia from the rooftop of La Pedrera .

Spain, Catalunya, Barcelona, La Pedrera by Antoni Gaudi, a section of the building's facade.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, ceiling Mosaic in the Hypostyle Room.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, one of the tiled mosaic benches on Banc de Trencadis.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, the Administration Lodge at the park's entrance with the city and sea in the background.

Spain, Catalunya, Barcelona, Montjuic, View of the central area of the Palau Nacional which was built for the 1929 International Exhibition in Barcelona and now houses the National Art Museum of Cata...

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, roof detail of the Administration Lodge at the park's entrance.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, roof detail of the Administration Lodge at the park's entrance.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, full view of the Administration Lodge at the park's entrance.

Spain, Catalunya, Barcelona, Antoni Gaudi's La Pedrera building, a section of chimney pots on the roof terrace.

Spain, Catalunya, Barcelona, La Pedrera by Antoni Gaudi, full view of the building's facade.

Spain, Catalunya, Barcelona, Antoni Gaudi's La Pedrera building, a section of chimney pots on the roof terrace.

Spain, Catalunya, Barcelona, distant view of La Sagrada Familia from the rooftop of La Pedrera .

Spain, Catalunya, Barcelona, La Pedrera by Antoni Gaudi, a section of the building's facade.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, ceiling Mosaic in the Hypostyle Room.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, one of the tiled mosaic benches on Banc de Trencadis.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, the Administration Lodge at the park's entrance with the city and sea in the background.

Spain, Catalunya, Barcelona, Montjuic, View of the central area of the Palau Nacional which was built for the 1929 International Exhibition in Barcelona and now houses the National Art Museum of Cata...

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, roof detail of the Administration Lodge at the park's entrance.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, roof detail of the Administration Lodge at the park's entrance.

Spain, Catalunya, Barcelona, Parc Guell by Antoni Gaudi, full view of the Administration Lodge at the park's entrance.

Italy, Sicily, Syracuse, Ear of Dionysius, Orecchio Di Dionisio, Neapolis Archaeological Park.

Italy, Sicily, Syracuse, Grotta Del Museion located above the Greek Theatre, Neapolis Archaeological Park.

Italy, Sardinia, Arzachema, Nuraghe La Prisgiona Archaeological Site.

France, Nice, Arenes De Cimiez, also known as Arenes Romaines, Roman ruins, Parc Des Arenes De Cimiez.

France, Grimaud, Domaine de la Cabro D'Or.

France, Grimaud, Blue window shutters, Domaine de la Cabro D'Or.

France, Grimaud, Domaine de la Cabro D'Or.

Bulgaria, Nessebar, Hagia Sophia Basilica, also known as St Sophia Church and The Old Bishopric.

Bulgaria, Nessebar, Arch and walls, Hagia Sophia Basilica, also known as St Sophia Church and The Old Bishopric.