The Marriott Marquis Chicago offers 1205 guest rooms, providing ample space for overnight groups attending a business event. The hotel has 63 meeting rooms, with the largest room accommodating up to 3068 seated guests, suitable for large conferences, plenary sessions, or keynote addresses. Practical amenities include business facilities such as meeting and banquet spaces, a business centre, and fax and photocopying services. Guests can enjoy complimentary WiFi, fitness facilities, and multiple dining options including a restaurant, bar, snack bar, and special diet menus on request. The hotel also provides facilities for disabled guests and non-smoking rooms, along with outdoor shared lounge areas. Private parking is available nearby without the need for reservations, contributing to convenient access. Located at 2121 South Prairie Avenue in Chicago, the hotel is situated in Cook County, Illinois. Its central address supports accessibility and ease of transportation for business travelers and event attendees.