The idea’s been floated for years — move Madison Square Garden so it’s no longer on top of Penn Station.
In one month, Amtrak is set to choose among three finalists to revitalize the station, six decades after the original facade was demolished.
One of those three finalists — Grand Penn Partners — would move The Garden across Seventh Avenue and add new green space covering the top of the old Penn Station. The price tag for the plan? $7.5 billion…