Which of the following would NOT be found on a topographical drawing?

A topographical drawing is a detailed and accurate representation of a terrain's physical features. It typically includes elevations, landforms, bodies of water, and vegetation, which would all be important for understanding the layout and characteristics of the land.

Mountains, rivers, and trees are natural features that are key components of topographical maps. They provide essential information about the geography and ecological layout of an area, helping architects, engineers, and planners visualize the site conditions.

On the other hand, windows are architectural features associated with buildings and structures rather than natural landforms. They pertain more to the built environment and are not relevant to the natural terrain representation that topographical drawings focus on. Hence, windows would not be found on such drawings, making this the correct answer for what would not typically be included in a topographical map.