Nik Wallenda to tightrope walk over Chicago RiverBloomington PantagraphCHICAGO (AP) — Daredevil Nik Wallenda said Tuesday that his next tightrope walk will be more than 50 stories high from one high-rise building to another over the Chicago River. Wallenda, 35, will attempt the feat without a net or harness. It will be broadcast ...and more »