The Willis Tower Skydeck's The Ledge cracked - but it's supposed to, according to a spokesperson, who said only the protective coating of the glass box that protrudes from the 103rd floor of Chicago's tallest building cracked.
Sky Deck Chicago donates 4 tickets to the Sky Deck. A $72 value. Send your request through the Contact Form. If approved they will request your IRS determination letter or other document to validate your group. They will mail the donation about a week prior to your event.