Passage: Dresden is a spacious city. Its districts differ in their structure and appearance. Many parts still contain an old village core, while some quarters are almost completely preserved as rural settings. Other characteristic kinds of urban areas are the historic outskirts of the city, and the former suburbs with scattered housing. During the German Democratic Republic, many apartment blocks were built. The original parts of the city are almost all in the districts of Altstadt (Old town) and Neustadt (New town). Growing outside the city walls, the historic outskirts were built in the 18th century. They were planned and constructed on the orders of the Saxon monarchs, which is why the outskirts are often named after sovereigns. From the 19th century the city grew by incorporating other districts. Dresden has been divided into ten districts called "Ortsamtsbereich" and nine former boroughs ("Ortschaften") which have been incorporated.

Question: What does Altstadt mean in German?
Old town