Explore details about location Mainzer Straße. Mainzer Straße is a location situated within the Südstadt alongside other areas such as Willy-Brandt-Allee, Notaufnahme Henriettenstift, Heidornstraße. Additionally, some smaller parts of Mainzer Straße include specific areas like Kärntner Platz, Gustav-Brandt-Straße adding to the diversity of its landscape.