For those not familar with the "famous" Rathskeller.
The Rathskeller is in the UW-Madison, Memorial Union at 800 LANGDON ST, MADISON WI 53706. They serve beer to Memorial Union Members (we have some Wisconsin Audio Club/Society members that are members and get pitchers of beer) and burgers, salads etc. They also play host to a variety of bands during different times of the year. A long time hang out for students, profs, and just people who like to let their hair down and relax. It is in the north central part of the Memorial Union looking out to Lake Mendota and famous Memorial Union Terrace. Here is a map of the Memorial Union (you can zoom in, move in four compass directions and select other campus locations for points as reference as well):
http://www.fpm.wisc.edu/map/default.asp?CampusMapNumber=83
Picture of Memorial Union Building and information about the union.
http://www.fpm.wisc.edu/map/building.asp?building=0008&wing=