Shoppers' World, Framingham, Massachusetts - an iconic retail destination

 Opened on October 4, 1951 with 44 stores, a theater, a bank and an amusement park, it was (at the time of opening) the world's largest suburban mall. The Jordan Marsh store was the third largest (in diameter) unsupported dome in the world after St. Peter's Basilica in Rome and St. Paul's Cathedral in London.