It's impossible not to appreciate the interesting architectural design of Rheintorturm, a popular historic tower that has managed to withstand the test of time.
Pay the admission fee and then take your time to really explore this popular Niederburg historic construction. If you're searching for more fun things to see and do in the area, Mainau Island, Sealife Constance and LAGO Shopping-Center Konstanz are near Rheintorturm.