Daan de Groot

Not super special, but worth the visit. The tower looks amazing from the outside, especially due to its unique position in the water. Once you enter, the tower holds little surprises but does give a great view over the area. On the second floor, you are able to take a nice picture with the bridge in the background. It's free if you have the Lisboa pass, you just need to get it validated in the park nearby (no need to stand in line for tickets)