One big invitation to play With a Robinia castle, no princess will ever be in distress. Instead, prepare for action and adventures suitable for queens and kings. A Robinia castle is packed with fun on all levels and floors. Children can let their imagination run wild and explore every little nook and corner. With its impressive size, a Robinia castle can embrace numerous children of all ages playing at the same time. Playing side by side in an imaginative world helps children develop both social and cognitive creative skills.