Thursday, Feb. 22, 2024 at 8 p.m. on KPBS TV / PBS App + Encores Monday, Feb. 26 at 8 p.m. on KPBS 2 and Tuesday, Feb. 27 at 10:30 p.m. on KPBS TV. We visit a San Diego place, made famous by one man, who stayed there just one time; discover what remains of "Potash City" in the South Bay; and recall some favorite San Diego County spots that are gone with time.