Monday, Jan. 23, 2012: Greenheck Lights Up the Night January 23, 2012 CHICAGO — Greenheck lit up Chicago's Union Station for its Sunday reception. Guests enjoyed networking, food, and NFL playoff football. KEYWORDS: AHR Expo Share This Story You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why.