the 'old city,' the medieval part of the city of Tübingen, which today is the 'downtown' center of modern Tübingen.

Altstadt or old city is a district or Stadtteil of Frankfurt am Main, Germany, located on the northern Main bank. It is surrounded by the city division of Innenstadt (Downtown).

The Altstadt (literally "old town") is one of the 49 boroughs of the German city of Düsseldorf, and belongs to City District (District 1). The Düsseldorfer Altstadt is known as the longest bar in the world (»längste Theke der Welt«), because the small Old Town has more than 300 bars and discotheques. Famous is the special beer from Düsseldorf, the Altbier (Old beer), brewed from an old traditional recipe, which is only brewed in a few places in the world since the end of the 19th century.