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d.w.davidson: C&NW - Lake Street
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d.w.davidson: C&NW - Waukegan, IL
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d.w.davidson: Milwaukee Road - Clybourn
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d.w.davidson: Soo Line / CTA - Bloomingdale Line
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d.w.davidson: C&NW - Clybourn Station
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sheffdave: St. George's
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leslieadkins614: Rockefeller Chapel
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timoteogrigio: Council Overhang Choir Boy
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sheffdave: Endcliffe Park
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sheffdave: View from the Bole Hills
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sheffdave: Barker's Pool
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metroblossom: After the Warehouse Fire
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metroblossom: Iced Truck, After the Warehouse Fire
Chicago Transit Authority: Electroliner at Tower 12
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drew*in*chicago: Holiday Train
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sheffdave: Crookes Cemetery
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davidwilson1949: 19860314 23 CTA North Side L @ Belmont Ave.
NASA Goddard Photo and Video: Earth From Mars
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sheffdave: Over the Atlantic the sun comes up
Chicago Transit Authority: Rail Replacement in Subway
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SFMoe: Panorama of Storm Chicago 06/29/2012
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mr._martini: ohhh alright
Chicago Transit Authority: South Side 'L' in 1893
NASA Goddard Photo and Video: Hinode Views the 2012 Venus Transit
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critter: KSS_2108
Property#1: Spring's New Arrivals
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sheffdave: Lodge Moor
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kati michelle: southbound tracks, northbound train
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davidwilson1949: 19860816 20 CTA Dan Ryan L @ Chinatown
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sheffdave: from Blackbrook Road