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  Stone Preservation

  Watch our video on why stone preservation across Capitol Hill is a top priority.

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  Crumbling Down and Building Up

  Addressing the stone pandemic takes a team of historic preservationists, structural engineers and stonemasons, among others.

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  Masonry at the AOC

  The hands-on work caring for the stone founds across Capitol Hill falls to AOC masons.

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  Sandstone on Capitol Hill

  During the early years of Washington, D.C., sandstone was commonly used because could be found locally and was easy to…

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Stone Preservation on Capitol Hill