The Farnsworth House, built by Ludwig Mies van der Rohe in 1951 and located near Plano, Illinois, is one of the most famous examples of modernist domestic architecture and was considered unprecedented in its day.
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.
Do you know, in Irish folklore, it is thought that painting one's door in red keeps away bad luck and wards off ghosts and evil spirits? :) I've always loved the idea of a red door, but with my Irish roots, this makes it even more charming :)