undercroft

Part of the undercroft roof will be removed so equipment can be lowered into the workspace by crane.

Floor-to-ceiling glass walls will provide a view of some of the supports in the undercroft, and an immersive theater presentation will project images of historic events onto the foundations, the Park Service said.

The undercroft includes the huge grid of exposed concrete columns and arched supports that hold up the memorial.

Much of the work will be done in the basement “undercroft” of the massive structure, where extensive new exhibit areas will be created.

It’s delightful to learn that the Undercroft, a basement lair under Doctor Strange’s Sanctum where deep magic is concocted, also doubles as the wizard’s laundry room.