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Blue Star Memorial Highway marker at New Market rest area
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Pennsylvania Turnpike Cumberland Valley Service Plaza
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Partially completed bridge pier
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Tracks descending into a tunnel
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East Falls Church interlocking
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Short section of track in cages
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Largo interlocking
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Vienna interlocking
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Tunnel portal outside Addison Road station
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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] (2792 visits) D Route pocket track on the Washington Metro system, showing the interlockings and the signal. This ...")