The famous painting from Georgia O'Keeffe shows the west side of the church in Taos, NM. The painting shows the shadows to the right - so the sun must be to the left! If you are looking east, left is NORTH!
I found a picture showing the same side of the church with the shadows to the left:
http://www.greatbuildings.com/cgi-bin/gbi.cgi/
San_Francisco_de_Asis.h... _2187118.gbi
Any ideas?