"Medea"
by AndyRG
Sleeping Beauty's Castle (Sababurg) is worth a visit, not far away from the city. The nearby forest is wonderful, it is Europe's oldest wild life park.
I was lucky to see an ancient greek tragedy (have a look at my Epidaurus' page) inside the castle -by Sababurg Theater- although I hadn't understand a lot, because of the language...
A different kind of nightlife
by King_Golo
The best view on Kassel is from Herkules. You discover the cascades, a little bit further Schloss Wilhelmshoehe, then your view wanders over the city centre... This is beautiful at daytime, but guess how wonderful it is during the night when millions of lights are flickering in the valley. It's certainly the most romantic place to be at night.