Louisville, Kentucky river traffic between the upper Ohio River and the Gulf of Mexico, the settlement first grew as a portage site. It was the founding city of the Louisville and Nashville Railroad, which grew into a system across 13 states. Today, the city is known as the home of legendary boxer Muhammad Ali, the Kentucky Derby, Kentucky Fried Chicken (KFC), the University of Louisville and its Louisville Cardinals athletic teams, Louisville Slugger baseball bats, and three of Kentucky's six "Fortune" 500 companies. Its main airport is also the site of United Parcel Service's worldwide air hub. Since 2003, Louisville's borders have
Downtown Louisville this one not only includes new high rises, but also a large scale return of large scale residential and retail back to the city center. The completion of Louisville Slugger Field along with a mass expansion of the city's Waterfront Park, both completed in 1998, sparked new development along the eastern edge of downtown, with entire abandoned blocks rebuilt with new condominium units and shops. Also, new to Louisville is the 22,000-seat KFC Yum! Center at Second and Main Streets which was completed in 2010. Early residences outside of the forts, still mostly wood structures, were built along the modern