<P> Unlike many Midwestern cities its age, Dayton has very broad and straight downtown streets (generally two or three full lanes in each direction) that improved access to the downtown even after the automobile became popular . The main reason for the broad streets was that Dayton was a marketing and shipping center from its beginning; streets were broad to enable wagons drawn by teams of three to four pairs of oxen to turn around . Also, some of today's streets were once barge canals flanked by draw - paths . </P> <P> A courthouse building was built in downtown Dayton in 1888 to supplement Dayton's original Neoclassical courthouse, which still stands . This second, "new" courthouse has since been replaced with new facilities as well as a park . The Old Court House has been a favored political campaign stop . On September 17, 1859, Abraham Lincoln delivered an address on its steps . Eight other presidents have visited the courthouse, either as presidents or during presidential campaigns: Andrew Johnson, James Garfield, John F. Kennedy, Lyndon B. Johnson, Richard Nixon, Gerald Ford, Ronald Reagan, and Bill Clinton . </P> <P> In 2009, the CareSource Management Group finished construction of a $55 million corporate headquarters in downtown Dayton . The 300,000 - square - foot (28,000 m), 10 - story building was downtown's first new office tower in more than a decade . </P> <P> Dayton's two tallest buildings are the Kettering Tower at 408 ft (124 m) and the KeyBank Tower at 385 ft (117 m). Kettering Tower was originally Winters Tower, the headquarters of Winters Bank . The building was renamed after Virginia Kettering when Winters was merged into BankOne . KeyBank Tower was known as the MeadWestvaco Tower before KeyBank gained naming rights to the building in 2008 . </P>

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