Subway Stations

The Carmelit in Haifa, Israel

New York City, NY

City Hall Station (abandoned), NYC

Moscow, Russia

Lower Bay Station (abandoned), Toronto

For a brief period a couple years ago, the TTC held tours of the Lower Bay: http://www.blogto.com/city/2009/09/authorized_urban_exploration_at_the_ttc_lower_bay_station_tour/

The trouble with most subway stations is the lack of hiding places, which increases the risk of getting caught.  These images are included for some of their unique features, nooks & crannies, and in a couple of cases, their lack of use.