Jagdschloss Kranichstein is a former landgrave's hunting lodge set away from Darmstadt's city centre, surrounded by the woods and ponds that once made this a princely hunting landscape. The building now houses a museum devoted to hunting, court culture, weapons, and wildlife, which sounds narrow until you realise how central hunting was to aristocratic life in early modern Germany.
It is a good counterweight to Darmstadt's Art Nouveau headline sights. Mathildenhöhe explains the city's modern artistic ambitions; Kranichstein shows an older, more rural power structure. Come by bike, car, or public transport with a short walk, and allow time for the estate setting as well as the rooms inside.