Hoboken is discussed on the Hoboken Terminal Page

 Newport has two tracks one island platform and a side platform serving eastbound (to Hoboken and 33^rd) trains. It was reopened due to substantial increase in service. During overnight hours, only the island platform is used. The round columns prominently display the letter E for Erie Terminal which was at street level. At one time this station was so under utilized that trains skipped the stop overnight! The station has two long ramps from the lower Mezzanine to the upper Mezzanine which is two stories high with escalators and elevator to the street fare control. Due to the glass station house, the upper Mezzanine is quite cheerful and sunny 

Exchange Place has two tracks and an island platform. The station is fairly deep using escalators to access the street. The station was closed after 9/11/01 due to flooding of the river tube and the station. While we have no backup, it is believed that water levels here reached higher than the platform damaging signals, tracks, and other infrastructure. Is lengthened to hold ten cars and an interlocking via a reopened tunnel was added to allow use of the station as a terminal. A look at the curved ceiling will show where the extension is located (West end). A highlight here is the neon art over the escalators and the historical art in the passageway to the other track. The station appears to be two wall platforms due to a center supporting wall, but the West end of the station will reveal the passageway to the other track and escalators and elevators to the street. if you will use the elevator rather than the escalator you will see a lower mezzanine complete with stairs to the platform and a  group of two elevators at the end of a passageway which lead to  the street fare control.

World Trade Center is discussed on the World Trade Center Page