Charles Street, known for most of its route as Maryland Route 139, runs through Baltimore City and through the Towson area of Baltimore County. On the north end it terminates at an intersection with Bellona Avenue near Interstate 695 (I-695) and at the south end it terminates in Federal Hill in Baltimore. Charles Street is one of the major routes through the city of Baltimore, and is a major public transportation corridor. For the one-way portions of Charles Street, the street is functionally complemented by the parallel St. Paul Street (including St. Paul Place and Preston Gardens), Maryland Avenue, Cathedral Street, and Liberty Street.