Muiden, Italy
The fortress is a part of the ''Stelling van Amsterdam'' a series of fortifications ringing Amsterdam, which used water to protect from invasion. This unique system has been included on the UNESCO World Heritage List. There are 45 forts in total 3 of which are in, or accessible from Muiden. Muizenfo
rt is located just south of the main lock.
Listen to the audio guide for Muizenfort Free on WIP — starts by itself when you arrive, even with the screen off