Building the subway. Post-World War I Cincinnati thought it needed a subway. Begun in 1919, work continued until 1926, when the project was abandoned. The subway ran underground in the excavated bed of the former Miami and Erie Canal, now Central Parkway. The rear façade of Music Hall is visible on the right, though today it lacks its turret. The tunnels still exist. This photograph is dated October 1920. Courtesy of the University of Cincinnati Libraries.