In the latest issue of the paper, Lebbeus Woods pays tribute to his friend and colleague Raimund Abraham, who died last month. Here, we gather together a survey of the visionary architect’s work, both built and—perhaps more importantly—unbuilt, for as Woods recounts of Abraham, “Building, he believed, necessarily violates nature’s wholeness, and must be done with a full awareness of consequences.” Click the image above of Abraham’s best known building, the Austrian Cultural Forum in New York, to begin the slideshow. (Special thanks to Stefan Heßling for generously sharing his images of Abraham’s musikstudio in Germany.)

You can also watch Abraham’s last lecture, delivered at SCI-Arc the night of March 3. He died in a car accident on his way home.