Imagery of a house can be described by the outlook or overall design of the exterior walls and windows. One could acaccomplish his simply by using descriptive words to describe the look of the walls, in a way that the reader could picture it in their head.
The second passage uses imagery and the way I can prove this is that in the first sentence of "The Fall of the House of Usher" by Edgar Allan Poe it describes the autumn day as a dull, dark, and soundless day.
