Rock N Roll McDonald's was a flagship McDonald's restaurant located in Chicago, Illinois. It is one of the most famous McDonald's locations in the world and was once the busiest in the United States. The restaurant/museum has been a tourist attraction since it opened in 1983. Its present building opened in 2005. The restaurant has a maximum occupancy of 300, which is about three times the standard patron capacity. The site has a rock and roll exhibit in a building adjacent to the restaurant and a small upstairs McDonald's museum display. The building features the first two-lane McDonald's drive-thru, relatively luxurious decor, a café, plasma display flat screen televisions and a green roof.