The one-of-a-kind event is the planet's tallest indoor stair climb, providing two modes of participation: climbing up Willis Tower's 103 flights of stairs or hand-cycling the equivalent distance and elevation. All proceeds from the event will support RIC's clinical care and research that advance ability for more than 50,000 adults and children around the world each year.

The registration fee for SkyRise Chicago is $50, plus a $100 individual fundraising minimum, in which participants receive a SkyRise Chicago T-shirt, swag bag, finisher's medal and after-race refreshments. For more info or to register, visit www.skyrisechicago.org .