. Sixteen floors above the bustle of the MotorCity Casino Hotel gaming floor stands the city's only AAA-rated Four-Diamond restaurant. Iridescence combines perfectly executed dishes with stunning ambience from the 16th floor of Motor City Casino in Detroit, MI. The high ceilings set it apart from every other dining destination in the city. MotorCity Casino Hotel is a Detroit luxury hotel, conference, banquet hall and hotel meeting concept built from the ground up. Considered to have one of the best views in the city, Iridescence at the top of MotorCity Casino Hotel is no longer a fine dining restaurant. Experience the best casual and fine dining Detroit restaurants all under one roof. Featuring spectacular views of the city skyline, Iridescence is Detroit's premier fine dining experience and has been awarded AAA's 4-Diamond rating year. Drop dead gorgeous. The. motor city casino restaurants. One: The restaurant itself is stunning. Home to Iridescence, the only AAA 4-Diamond Award-Winning restaurant in. It adjoins MotorCity Casino.