High Quality Content by WIKIPEDIA articles! The Magnificent Mile is the portion of Michigan Avenue in Chicago, Illinois extending from the Chicago River to Oak Street in the Near North Side community area. The district is located adjacent to downtown; it is also one block east of Rush Street, which is known for its nightlife. The Magnificent Mile serves as the main thoroughfare between Chicago's Loop business district and its Gold Coast. It also serves as the western boundary of the Streeterville neighborhood.