Switzerland, Chateau de Chillon, on Lake Leman.

Czech Republic, South Bohemia, Cesky Krumlov, Canoeists relaxing on a river side with the Chateaux rising behind.

Czech Republic, South Bohemia, Cesky Krumlov, View of the Chateaux and Round Tower illuminated at night.

Chateaux de Lastours. Cathar castles. From left to right Chateau Cabaret mid-eleventh century Tour Regine added after 1240 and Surdespine 1153

Chateaux de Lastours. Cathar castles from left to right Chateau Cabaret mid-eleventh century and Tour Regine added after 1240.

Chateaux de Lastours Cathar castles. Chateau Cabaret dating from the mid-eleventh century set on hillside with cypress trees.

Chateaux de Lastours Cathar castles. Chateau Surdespine 1153 on steep hillside.

Switzerland, Chateau de Chillon, on Lake Leman.

Czech Republic, South Bohemia, Cesky Krumlov, Canoeists relaxing on a river side with the Chateaux rising behind.

Czech Republic, South Bohemia, Cesky Krumlov, View of the Chateaux and Round Tower illuminated at night.

Chateaux de Lastours. Cathar castles. From left to right Chateau Cabaret mid-eleventh century Tour Regine added after 1240 and Surdespine 1153

Chateaux de Lastours. Cathar castles from left to right Chateau Cabaret mid-eleventh century and Tour Regine added after 1240.

Chateaux de Lastours Cathar castles. Chateau Cabaret dating from the mid-eleventh century set on hillside with cypress trees.

Chateaux de Lastours Cathar castles. Chateau Surdespine 1153 on steep hillside.

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, 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.

Parc Guell. Detail of colourful mosaic by Gaudi from a park bench seat.

Gaudi dragon covered in brightly coloured tiles on the steps in Parc Guell

Gaudi architecture seen through trees in Parc Guell