Both of the Gaudi apartment buildings in Barcelona give you the opportunity to go up on to the roof. The striking feature up there is the proliferation of chimney pots- all are distinctive. The design appears again on the passion facade of the Sagrada Familia, used for the helmets of the Roman soldiers (as a homage to Gaudi).
Even if you don’t enjoy the architecture, look at that beautiful blue sky…
I have to wonder where they found the craftsmen to build this amazing stuff.