The exchange is that gray building left of the last dock.
The school was quite unlike the dark grey building he had attended in London.
See that cluster of long gray buildings off to the side?
He looked out of the glass at the bleak, grey buildings.
She pointed ahead, south, toward a long, low gray building that ran the length of the square.
There he found a large, flat, gray building and pulled into the parking lot.
Not Daniel, but a building, low and gray, set deep in the woods near a mountain.
Cross the tracks, walk past a gray building and take the first left.
Casey looked around at the huge gray buildings: Building 64 to the south.
There was a big gray building with trees in front.