It is wonderful to walk in Utrecht, surrounded by impressive castles, fortresses and castles, including the largest castle in the Netherlands: Kasteel de Haar. Walk along the monumental fortresses or climb the highest point of the Utrechtse Heuvelrug: the Pyramid of Austerlitz. Explore the area around the Utrechtse Heuvelrug national park with all the beautiful estates or take a trip to Amersfoort.