The Big Loop is a 2 Hour open top bus tour offering a comprehensive route with 14 stops near all the top sights of Chicago. The Classic Ticket is good for 1 calendar day. View the Big Bus Tours Chicago Stop Map. See these top Chicago Landmarks: John Hancock Center & 360 Chicago Navy Pier Willis tower & Skydeck Chicago Art Institute of Chicago The Field Museum Shedd Aquarium Adler Planetarium Soldier Field Michigan Avenue Bridge Millennium Park Magnificent Mile Important Information: This voucher is good for the length of time it has been purchased for. Please note, this voucher is non-exchangeable and non-refundable. Redeem voucher at Stop 1 at Fort Dearborn, E Lower Wacker Dr, Chicago, IL 60601 or any stop location.