For many years, 100 North Main was crowned with a large illuminated "UP Bank" sign, visible for miles. The sign was dismantled in late 2005 due to the acquisition of Union Planters National Bank by Regions Bank. As of April 2007, the sign had not been replaced and the tower's top cap is a blue, empty box –giving the building a somewhat abandoned appearance. Because of the "UP Bank" sign, many Memphians mistakenly believe that 100 North Main was the headquarters building of Union Planters, although the bank's actual headquarters was at 67 Madison Avenue and, later, 6200 Poplar Avenue.