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New York circa 1904. "City Hall subway station." 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.
Oh, that color picture is gorgeous.
If they can't come up with the scratch for a museum, they could lease spots for upscale kiosks.
Jackie Estacado, protagonist of the video game "The Darkness" (a demon-possessed mafia hitman, I kid you not), has a major shootout in this tunnel. Very cool, but not as cool as the real thing.
The station is just remarkably beautiful. The amount of artisanal inspiration, design and impeccable craftsmanship is extraordinary. It looks like a turn-of-the century University Library. I'd like to live in it!
It's not that hard to see the station without waiting for a Transit Museum tour. Trains on the 6 line use the loop through City Hall station to change directions. When downtown 6's stop at Brooklyn Bridge station, the last/first stop on the line, the conductors announce "last stop" but generally don't check to see if anyone's still onboard. If you ride in the last couple of cars you usually won't be bothered and can ride through the loop and see the station.
I did this several years ago and quite frankly was underwhelmed with City Hall station.
The New York Transit Museum periodically conducts tours of the City Hall station, which hasn't been used for passenger service since 1945, but still survives at the end of the 6 line.
Here's a photo from the tour conducted in 2008: http://www.flickr.com/photos/mcgaw/2211045640/
This stop was last used in 1945. A history of it here. There were plans to reopen it as a museum but so far they have not materialized. Below, the abandoned station as it looks now. Click for more info.