I’ve created vector art silhouettes of some large buildings—particularly airport terminals.

Other Silhouettes
Shopping Malls
From 2020–2022, I drew silhouettes of a few shopping malls.

Convention Centers

Orange County Convention Center
Orlando, Florida, United States
Technical Details
I draw these silhouettes as SVG vector images with Inkscape, an open source vector graphics editor.
My primary references are Google Earth and Bing Maps satellite imagery, supplemented by other satellite imagery, maps on facility websites, photos and videos, and my own memory of each facility.