This is the kind of place I would like to be living in when I am old & gray. The seeds have been planted, but it will take a long time to grow. "The walls are covered in the artwork of the Austrian artists Kurt Kocherscheidt, Brigitte Kowanz, Joannis Avramidis and Maria Lassnig; wooden floors and Oriental rugs are found throughout the home. Also on display are artifacts like arrowheads and figures from Mr. Reder’s research trips to the Sahara, Afghanistan, Syria and the Caucasus. A drawing by Walter Pichler, an architect and sculptor, hangs above the fireplace. It is one of many sketches by an array of artists and architects hanging on the walls throughout the apartment — even in the kitchen, which is a cozy alcove with a Saarinen round table and Thonet chairs. Thousands of books line the walls of almost every room, as well as the guest bathroom, where a toilet sits like a throne at the back of a long narrow hall. “We were running out of space,” Ms. Reder said. “So the books spilled into the bathroom. We put crates of wine here, too, since it’s the coolest room in the house.” "