Wikimedi'Òc

Georgetown pumping station castle.jpg - DanMS

Chief of Engineers visits Washington Aqueduct (10601949256).jpg - File Upload Bot (Magnus Manske)

Castle Gatehouse, Washington Aqueduct.jpg - Bestbudbrian

Castle Gatehouse and pumphouse of the Georgetown Reservoir, part of the Aqueduct system that sends water through a four-mile-long tunnel into the heart of the city. Washington, D.C LCCN2011634083.tif - Fæ