Johann Erdmann Hummel (1769-1852) – The Granite Dish in the Berlin Lustgarten Alte und Neue Nationalgalerie (Berlin)

The picture has something of this: architecture, museum, building, outdoors, people, sky, city, military, daylight, group, war, water, vehicle, tourist, sculpture, landscape.
Perhaps it’s a painting of a group of people standing in front of a fountain with a fountain in the middle of the ground and a building in the background.