Going through some other recent folders until I can get back out on the street. Besides the aquarium, Union Station has a ropes course/zip line/aerial challenge feature.It's scary but perfectly safe. People are suspended in a strong harness, shown here, connected by a heavy cable to an overhead track. You couldn't fall if you tried. All comers are welcome, even if you are not as lithe as the daring young man on the flying trapeze.