The architecture on the Twin Cities Campus of the University of Minnesota ranges from the tradititional Northrup Auditorium to the modern Weisman Art Museum. But neither of these structures has a periscope. As a part of our series "Universal U", Minnesota Public Radio's Steven John reports on a subterranean landmark. {110 feet under the surface of the East Bank research on road and tunnel design, earthquake protection, and environmental clean-up methods are taking place in the laboratories of the Civil Engineering building.