It’s the postcard that says this is the longest suspension bridge.  Time has overtaken the claim, however.  Now, the Mackinac Bridge Authority says:  “The Mackinac Bridge is currently the fifth longest suspension bridge in the world. In 1998, the Akashi Kaikyo Bridge in Japan became the longest with a total suspension of 12,826 feet. The Mackinac Bridge is the longest suspension bridge in the western hemisphere.”  Anyway, length is measured by the main span.  Unused card.  Grade: 1