Spain, Catalonia, Barcelona, La Pedrera or Casa Mila on Passeig de Gracia, designed by Antoni Gaudi, view of the roof through mesh covered attic window.

Spain, Catalonia, Barcelona, La Pedrera or Casa Mila on Passeig de Gracia, designed by Antoni Gaudi, view of the roof through mesh covered attic window.

Spain, Catalonia, Barcelona, La Pedrera or Casa Mila on Passeig de Gracia, designed by Antoni Gaudi, view of the roof through mesh covered attic window.

Spain, Catalonia, Barcelona, La Pedrera or Casa Mila on Passeig de Gracia, designed by Antoni Gaudi, scale model in the attic.

Spain, Catalonia, Barcelona, La Pedrera or Casa Mila on Passeig de Gracia, designed by Antoni Gaudi, scale model in the attic.

Austria, Vienna, The columbary Dovecote or pigeon loft at the Schloss Schonbrunn, built between 1750-1755.

Austria, Vienna, The columbary Dovecote or pigeon loft at the Schloss Schonbrunn, built between 1750-1755.

Cukul Tea Estate. Tea leaves in drying loft.