An awesome piece outside the Smithsonian Museum of Modern Art in Washington D.C. I snapped in 2004. I wish I took a couple more angles. What’s going on here is that the house, made of sheet metal, is physically concave from the perspective of the viewer (i.e. the point where the white wall meets the yellow wall is furthest from the camera). The illusion, as you can see here, is that the house is convex (i.e. the point where the white wall meets the yellow wall seems closest to you, when it in fact is not).
The easiest way to realize the true perspective is probably to study the baseline of the house. It’s an upside-down V. If the house were truly convex, the V would be right side up.