Peter Eisenman's Berlin/Holocaust memorial Light and Shadow. I like the way the structure of the building creates strong impressions of light and dark. Also the juxtaposition between the natural and man-made forces interests me.
Former Reichsbahnbunker Friedrichstrasse, Berlin. Now the home of the Boros Collection (Sammlung Boros), after conversion by architects Realarchitektur t's a pattern created by light seeping from the open edges of the box made of (inward facing) mirrors.