Pennsylvania Station

http://en.wikipedia.org/wiki/Pennsylvania_Station_(New_York_City)#History  

http://en.wikipedia.org/wiki/Pennsylvania_Plaza ,
http://nymag.com/daily/intelligencer/2010/08/the_empire_state_building_thin.html 

http://www.designboom.com/architecture/som-proposes-to-fanastically-expand-penn-station/

http://wordlesstech.com/2013/06/05/new-penn-station-proposal-by-som/

https://www.google.ca/search?q=pennsylvania+station+nyc&biw=1920&bih=971&tbm=isch&tbo=u&source=univ&sa=X&ei=6aC8VIGWO4GcyASOioLYCA&ved=0CEoQsAQ

http://observer.com/2013/04/much-ado-about-nothing-midtown-east-rezoning-not-all-that-grand/

http://nygeschichte.blogspot.ca/

https://jfdatalinks.blogspot.com/search?q=Pennsylvania+Station

NYC Moynihan Penn Station train hall opens

 https://www.newsbreak.com/new-york/new-york/news/2136590998006/nyc-moynihan-train-hall-opens-tomorrow

https://www.newsbreak.com/new-york/new-york/news/2135156861895/virtual-sneak-peek-of-the-new-moynihan-train-hall-amtrak-station

https://en.wikipedia.org/wiki/Moynihan_Train_Hall

https://www.boweryboyshistory.com/2021/01/podcast-rewind-remembering-original-pennsylvania-station.html

https://jfdatalinks.blogspot.com/search?q=Pennsylvania+Station  

https://jfdatalinks.blogspot.com/search?q=Amtrak

Pennsylvania Station

 https://jfdatalinks.blogspot.com/search?q=Pennsylvania+Station

https://jfdatalinks.blogspot.com/search?q=NYC

Pennsylvania Station (New York City)

 https://en.wikipedia.org/wiki/Pennsylvania_Station_(New_York_City)

https://upload.wikimedia.org/wikipedia/commons/1/1d/Pennsylvania_Station_aerial_view%2C_1910s.jpg

https://en.wikipedia.org/wiki/Pennsylvania_Station_(1910-1963)

https://upload.wikimedia.org/wikipedia/commons/7/7f/Penn_2163723600_1bb4d3f9c6_o_crop.jpg

https://en.wikipedia.org/wiki/Gateway_Program_(Northeast_Corridor)

https://en.wikipedia.org/wiki/Moynihan_Train_Hall

https://jfdatalinks.blogspot.com/search?q=Pennsylvania+Station