Stay Longer and save more at the Holiday Inn Chicago Mart Plaza. Take one more day to explore the Windy City, shop along the Magnificent Mile, sail away on a river cruise, or just relax in bed - all with extra savings. Receive the deepest discount on modern accommodations with skyline views with our rewarding Chicago hotel offer when you book your stay in advance for three nights or more. You'll love our three onsite restaurants, indoor pool, fitness center, business center, meeting space, and spectacular Chicago skyline views. It's just another way of saying thank you to our guests for staying with us.