1. City Hall Lower Level
When most people think of abandoned stations at City Hall, they think of the ornate abandoned station located along the 6 line. However, there is another abandoned City Hall platform – this one located under the active N/R line station of the same name. During construction of the present day N/R/Q tunnel, the original plan was to have express trains serve lower Manhattan, using this station. When those tracks were diverted to the Manhattan Bridge, this part of the station became redundant. It quickly found re-use as a space to park trains overnight.