Concrete tower. This was just beyond the Ponte de São João. It looks a bit like an aircraft control tower but there wasn’t an airport nearby:-

Multi-chimneyed building:-

River bank Church. Note tiles on gable end facing the river:-

River boats, buildings and Igreja de Santa Clara Church on hill crest:-

Igreja de Santa Clara Church on centre-left of photo:-

Port warehouses and old style boats:

On the hill here can be seen a dome that we were told by the river-tour guide was the only building left from an Exhibition that had been held in Porto:-

Beyond the Arrábida Bridge before we had to turn back we got a view of the mouth of the river Douro as it meets the Atlantic:-

Another sunburst door in Avilés:-

Art Deco styling balconies:-

Spanish Style, almost Deco:-

Some buildings in Avilés had wonderful tiling on the exterior. This was in a particularly deco style:-

A more modern take on the deco style in Avilés:-

Verging on Deco:-

The most stunning deco/moderne building we came across in Avilés was this very rectilinear infant and primary school. Colegio de Educacion Infantil e Primaria, “Palacio Valdes”:-

Doorway, note canopy:-

The clock tower and face is great. Note flagstaff – plus “rule of three” in windows on gable end:-

Avilés had a fair amount of Art Deco buildings or at least ones showing some of the style.

This first one definitely qualifies though. I couldn’t fit it in my camera’s frame nor did the photos stitch together. The facade took up three photos :-

Central doorway portion:-

The actual doors were half-sunburst in appearance. Portal 17-A:-

Portal 17-b. Note the reflection of the half-sunburst as compared to 17-A and tiled frieze above:-