Peenemünde is the birthplace of rocketry. The infamous V1 and V2-rockets were developed, tested and launched from here during WWII and the site was bombed by the allied forces. Today there is not so much left of the manufacturies, but the power plant, some rockets and a bunker is left for the visitors. After the war Peenemünde was used as a East German military base, hence there is also a lot of East German military equipment on show.
You can get in by car. There are also smaller ferries from Rügen in the summer.
It is not legally possible to get to the former launch pad of the V2-rockets, the test stand VII. The visit of the ruin of the oxygen plant may be illegal.
Books of the history of Peenemünde and rocket science, e.g. at the gift shop of the historical-technical information center Peenemuende. There are also model rockets available.
There is a restaurant in the power plant, and in the harbour you will find many smaller kiosks selling hot dogs, ice creams and other refreshments.