Many thanks to Belita for hosting this week at rather short notice!! A great theme, with lots of possibilities!! I have decided to go with just windows.
Here are mine:
1) The letters forming the words on the front of the Wales Millenium Centre, Cardiff, are actually windows!!
2) Stained-glass window depicting St Samson, Caldy Island, Wales.
3) Modern windows, New York.
4) Window-art, National Waterfront Museum, Swansea, Wales.