A look at the Secret Cities

Secret Cities: The Architecture and Planning of the Manhattan Project, a special exhibition at the National Building Museum in Washington, DC

From left, panelists David Klaus, Lisa E. Gordon-Hagerty, and Peggy McCullough

NNSA Administrator Lisa E. Gordon-Hagerty speaks on a special panel about the Secret Cities at the National Building Museum.

NNSA Administrator Lisa E. Gordon-Hagerty tours the Secret Cities exhibiton at the National Building Museum.

NNSA Administrator Lisa E. Gordon-Hagerty tours the Secret Cities exhibiton at the National Building Museum.

NNSA Administrator Lisa E. Gordon-Hagerty tours the Secret Cities exhibiton at the National Building Museum.