The tallest building in Amsterdam, built in the 17th century. The facilities inside the church are relatively simple and worth climbing the tower. Every 8 euros per person enters a group of people every 30 minutes. There are guides leading the way up the tower, and there are explanations on each floor. They use relatively simple English, which is easy to understand. The stairs are very steep, basically looking at the foot of the person in front of them. In the middle of the tower are musical instruments, there is an instrument similar to the piano, and there is an instrument similar to the bell, playing regularly. A small wooden bed for a night watchman is said to be used for timely warning of urban fires. The Tower overlooks the city of Amsterdam with beautiful scenery.