What is "green rooms"

Usage examples of "green rooms".

He had put up a screen in order to hide the state apartments, the Red, Blue and Green Rooms, from the eyes of the multitudes who came to do business with the President, whose office and living quarters were still, as in Lincoln’.

He had put up a screen in order to hide the state apartments, the Red, Blue and Green Rooms, from the eyes of the multitudes who came to do business with the President, whose office and living quarters were still, as in Lincoln's day, on the second floor, and reached by a shabby old staircase to the left of the entrance.

She would drive a large number of potential protectors to madness if she were ever to descend upon any of the green rooms in London.

Great pines, both conical and spreading varieties, many standing over two hundred feet tall, built sublimely scented palaces on the slopes around the lake, green rooms of perpetual Christmas ornamented with cones as small as apricots and others as large as pineapples.