"Big Mac, Filet-O-Fish, Quarter Pounder, French Fries, Icy Coke, Thick Shake, Sundaes and Apple Pie..." goes an old McDonald's jingle about its classic fast food menu. Find these eats and more at this 1950s-themed franchise that houses vintage cars, jukeboxes and rock 'n' roll memorabilia. Located near the Hard Rock Cafe, another popular nightspot in the heart of downtown, this was the busiest McDonald's in the world at one point.