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Forest Glen station
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Pedestrian tunnel under Queen City Drive
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Anarchy sign painted in Cumberland, Maryland pedestrian tunnel
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Abandoned shopping cart
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Dusty Edwards Genesis fire alarm horn/strobe
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Forest Glen station
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Wilkes Street Tunnel [01]
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Wilkes Street Tunnel [02]
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Wilkes Street Tunnel [03]
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Wilkes Street Tunnel [04]
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Wilkes Street Tunnel [05]
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Wilkes Street Tunnel [06]
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Wilkes Street Tunnel [07]
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Wilkes Street Tunnel [11]
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Wilkes Street Tunnel [15]
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Wilkes Street Tunnel [13]
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Wilkes Street Tunnel [14]
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Wilkes Street Tunnel [12]
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Wilkes Street Tunnel [10]
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Wilkes Street Tunnel [08]
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Wilkes Street Tunnel [09]
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Blue Ridge Tunnel [15]
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Blue Ridge Tunnel [05]
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Blue Ridge Tunnel [04]
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Blue Ridge Tunnel [09]
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Blue Ridge Tunnel [08]
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Blue Ridge Tunnel [11]
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Blue Ridge Tunnel [03]
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Blue Ridge Tunnel [02]
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Blue Ridge Tunnel [07]
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Blue Ridge Tunnel [06]
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Blue Ridge Tunnel [14]
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Blue Ridge Tunnel [10]
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Blue Ridge Tunnel [13]
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Blue Ridge Tunnel [01]
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Blue Ridge Tunnel [12]
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Blue Ridge Tunnel [16]
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Below-grade passage at the Chrysler Building [01]
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Below-grade passage at the Chrysler Building [02]
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Vintage wall signage at the Chrysler Building
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Silver Spring tunnel portal from inside
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Disused pedestrian tunnel at Pentagon City station
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Holland Tunnel eastbound tube