Public domain photos

The image shows a drawing of a floor plan of a building with a lot of windows, which is believed to be the first floor of the castle of St. Petersburg. The drawing is on a piece of paper with some text written on it, and the background of the image is black in color.

The image shows a drawing of a floor plan of a building with a lot of windows, which is believed to be the first floor of the castle of St. Petersburg. The drawing is on a piece of paper with some text written on it, and the background of the image is black in color.Open in library