You can learn a lot of interesting information from going on a tour of a medical institution. Find out whether Extavium is open to visitors while you are in the area.
If you're planning to stick around a while in Innenstadt, Extavium is a good place to start your exploring. This health care institution is one of many attractions that'll keep you on the go here. Sanssouci Palace, Potsdam's Brandenburg Gate, and Babelsberg Film Park are also ready to be explored nearby.