This image is a floor plan for a Brookhaven National Laboratory building, featuring a unique three-winged architectural design. The floor plan appears to be symmetrically arranged with multiple rooms and spaces, with a central core area and three extending wings. Each wing contains a series of standardized rectangular rooms, with staircases located at the wing junctions. The document includes a north arrow, suggests precise architectural drafting, and is marked as sheet "E-2" in the title block, indicating this is likely an electrical or engineering schematic for a specific laboratory facility. The building seems designed to provide numerous separate laboratory or research spaces with a centralized circulation and access strategy.