Federal Hill is a neighborhood in Baltimore, Maryland, United States that lies just to the south of the city's central business district. The neighborhood is named for the prominent hill that is easily viewed from the Inner Harbor area, to which the neighborhood forms the physical south boundary. The hillside is a lush green and serves as a community park. The neighborhood occupies the northwestern part of a peninsula that extends along two branches of the Patapsco River—the Northwest Branch (ending at the Inner Harbor) and the Middle Branch. The Cross Street Market, a historic marketplace built in the 19th century, continues to serve residents and is the primary social and commercial hub for the neighborhood.