A glimpse of Chicago's Union Station, the third busiest rail station in the U.S. after New York's Grand Central and Penn Station. It is the city's primary terminal for commuter trains (Amtrak and Metra).
Photos: Chicago Union Station

Chicago Union Station at night - Photo: Andrew Seaman - 2014 - Flickr

Photo: Chicago Union Station

Chicago Union Station 'To Trains' sign - Photo: Matt' Johnson - 2014 - Flickr

Chicago Union Station Nuts on Clark - Photo: Michael Kappel - 2011 - Flickr

Chicago Union Station MetroDeli - Photo: David Wilson - 2011 - Flickr

Chicago Union Station Metra platforms - Photo: Michael Kappel - 2010 - Flickr

Chicago Union Station interior - Photo: Colin Keefe - 2010 - Flickr

Chicago Union Station Great Hall - Photo: harleypeddie - 2013 - Flickr

Chicago Union Station breakfast special - Photo: Michael Kappel - 2010 - Flickr

Ornate columns.
Photo: Samuraijohnny - 2010 - Flickr

Chicago Union Station exterior corner - Photo: Matt Clare - 2006 - Flickr

Chicago Union Station flag interior - Photo: V'ron - 2007 - Flickr

Chicago Union Station platform - Photo: Kevin Walsh - 2008 - Flickr

Chicago Union Station passengers - Photo: Michael Kappel - 2013 - Flickr

Chicago Union Station glass doors - Photo: Michael Kappel - 2010 - Flickr

Chicago Union Station clock at night - Photo: Andrew Seaman - 2014 - Flickr

Between trains at Chicago Union Station- Photo: axle drainville - 2009 - Flickr

Chicago Union Station Barber Shop from a bygone era. - Photo: Chicago Union Station

Columns in an interesting light.
Photo: Chicago Union Station - Shutter Runner - 2012 - Flickr

Chicago Union Station exterior - Photo: maisa_nyc - 2001 - Flickr

