This is one I love. It’s next to the Astrodome.
google.com/…/data=!3m7!1e1!3m5!1shD-W_pZrPipgvJzu…
Granted, it usually is almost empty. I’m not even sure it was designed to be a bikepath/sidewalk originally but my god it is heavy ride down. I think it’s maintained by the city because most sidewalks are maintained by the landowner, and are thus usually almost trying to murder cyclists.