'squares' and 'half-squares' ...

.. in the architecture for this weeks abstract thursday theme set by Youoregon1.  I had a lovely swirly abstract ready but then realised just before blipping that there was a theme this week. Had taken a few photos in town this evening of the architecture but I think there are more triangles than squares. Reckon a triangle is actually half a square so hopefully  I'm halfway there! 
PS have added the swirly abstract  as an extra , thanks to Rainie for explaining how to do this.