St. Louis, MO a.k.a. Gateway City, Gateway to the West, St. Louie, River City, and The 'Lou * The Gateway Arch, at 630 feet high, is the nation's tallest national monument. It's also as wide as it is high, spanning 630 feet between the outsides of the legs at ground level * Like Lithium? 7-Up was invented in 1929 by St. Louis salesman Charles Leiper Grigg. Its original name, "Bib-Label Lithiated Lemon-Lime Soda," refers to the fact that it contained the mood-stabilizing drug lithium citrate up until 1950 * Charles Lindbergh named his plane “Spirit of St. Louis” as a shout-out to the local businessmen who'd given him the financial backing he needed to quit his day job and join the jet set