Above, another image from the wannes deprez/ony one flickr stream: A. Gutnov, V. Iudintsev, E. Rusakov, Scheme for a tower on Trubnaia Square, Moscow, 1970. This looks like something from the 1920s rather than 50 years later. More of that crazy Soviet-era architecture that's gradually getting wider views thanks to the WWW.
Completely unrelated except in some vague rhythmic sense, a neo-Rauschenbergian photo-combine by Roy Stanfield. (Actually it's way more elegant than anything Bob ever did.) From Stanfield's website, which is now a daily, single image archive. He also designs artist and gallery websites, so throw him some business.