Sam K.
Yelp
The Karlstein Castle is the castle of King Charles. Obviously, due to this reason, it has historical significance. The castle took a long time to build, and the water source of the castle came from a deep well that had water redirected from the river. Due to this fact and to avoid having others poison the river to conquer the castle, legend has it that the king killed all that worked on the castle to keep their mouths shut forever. King Charles married 4 times and had 2 princes. Each time he remarried because his queen died either due to miscarriage or sickness. The Karlstein Castle tour is certainly worth it, but do note that the tour only runs at specific times each day, which means that you may wait a while either due to the group being already too large or you came at a wrong time. The nice walk and view are certain the wait, however!