The photo below is the corridor I walk down every day to get to work. I work in the Port Authority building; it's a massive edifice that fills a block between 8/9th and 15/6th. I have no idea what used to be in the building, but now it's got more bandwidth than Africa (honestly, that's one reason why Google's also in the building).
Our offices are on 8th, but I like taking the 9th street entrance as I get to walk down the corridor. Walking past the freight elevators, down the painted brick corridors and underneath the miles of metal tubes holding fiber optics harkens back to a building and New York that no longer exist. It's a priceless way to start the day.