Switzerland, Valais, Ernen, Village of Ernen caught in brief moment of sunshine above the Rhone Valley.

Spain, Castille-Leon, Segovia, Roman Aqueduct.

Spain, Castille-Leon, Segovia, Roman Aqueduct.

Spain, Castille-Leon, Segovia, Roman Aqueduct.

Spain, Castille-Leon, Segovia, Roman Aqueduct.

Spain, Castille-Leon, Segovia, Roman Aqueduct.

Spain, Castille-Leon, Segovia, Roman Aqueduct.

Spain, Catalonia, Barcelona, scuplture by Joan Brossa in front of BarcelonaÕs Roman wall, where the aqueduct once entered the city and spells out the word Barcino, the Roman name of Barcelona

Spain, Catalonia, Barcelona, scuplture by Joan Brossa in front of BarcelonaÕs Roman wall, where the aqueduct once entered the city and spells out the word Barcino, the Roman name of Barcelona

Spain, Extremadura, Merida, Los Milagros Aqueduct built by the Romans in the first century BC.

Spain, Extremadura, Merida, Los Milagros Aqueduct built by the Romans in the first century BC.

Spain, Extremadura, Merida, Los Milagros Aqueduct built by the Romans in the first century BC.

Portugal, Lisbon, Aguas Livres Aqueduct of the Free Waters.