The Mackinac Bridge (pronounced MACK-in-aw, and affectionately known as the "Mighty Mac" or "Big Mac"), is a suspension bridge spanning the Straits of Mackinac to connect the non-contiguous upper and lower peninsulas of the U.S. state of Michigan. Envisioned since the 1880s, the bridge was completed only after many decades of struggles to begin construction. Designed by the engineer David B. Steinman, it connects the cities of St. Ignace on the north end with Mackinaw City on the south. (from Wikipedia)

