Mannheim, Germany
Fall: early September to late December
Spring: early February to mid-June
One week before classes begin
English & German
http://www.uni-mannheim.de/ionas/n/uni/akademisches_auslandsamt/english/incoming_exchange_students/accommodation/index.html
The estimated monthly cost for food, accommodation, and transportation is around 600 to 700 Euros (about $800).
American students do not need an entrance or student visa, but they will have to register at the foreign residence office and apply for a residence permit after they arrive in Germany. For more information visit: http://www.intstudy.com/visager.htm