A ticket to this weekend's Artropolis, the international art show at The Merchandise Mart, is normally $20 for a one-day pass, but if you bike to the event you'll get free admission to Art Chicago, NEXT, The Merchandise Mart International Antiques Fair, The Artist Project and The Intuit Show of Folk and Outsider Art. That's a whole lot of art to look at for free, people! Just park your bike in the racks when you arrive and check in at the South Lobby Concierge Desk to get your ticket.