For about 200 years Baltimore’s Inner Harbor allowed the city to be a leader in many industries such as shipbuilding, canning and steel. By the second half of the 20th century city leaders decided to turn the idle port into a bustling tourism attraction. Haborplace and the National Aquarium were built and soon many other attractions followed. Today you can learn more about Baltimore’s maritime history on one of Historic Ships of Baltimore’s floating museums. Four vessels and one lighthouse placed around the Inner Harbor each contain information and artifacts from a different era.