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Rosslyn tunnel portal
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Metro D Route pocket track [02]
![Metro D Route pocket track [02]](../../../../i/upload/2024/07/15/20240715141423-2fe25243-cu_s9999x250.jpg "Metro D Route pocket track [02] (2934 visits) D Route pocket track on the Washington Metro system, showing the interlockings and the signal. This ...")
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"Darth Vader" railroad signals
!["Darth Vader" railroad signals](../../../../i/upload/2024/07/16/20240716010746-4f791876-cu_s9999x250.jpg "\"Darth Vader\" railroad signals (1878 visits) A grouping of "Darth Vader" vertical color light signals on the CSX Landover subdivision i...")
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Pedestrian signal at 15th and P Streets NW
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Traffic signal on 7th Street SW
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7th Street and Independence Avenue SW
