The grand state museum presents 300,000 years of regional history, so strap in for this one. Starting with fossils and early agriculture, moving on via Renaissance riches and World War II all the way through to modern times, it takes in all aspects of local culture and society. Highlights? Where to begin. Check out the amazing and opulent treasures in the collections of the Landgraves from the 16th and 17th centuries, including the porcelain and gold Seladon Dish, the oldest imported Chinese dish in Europe, which has been in Kassel since the 1420s. That is a very, very old dish.