Sicilian immigrant Baldassare Forestiere spent four decades (1906–46) carving out an odd, subterranean realm of rooms, tunnels, grottoes, alcoves, and arched passageways that once extended for more than 10 acres between Highway 99 and busy, mall-pocked Shaw Avenue. Though not an engineer, Forestiere called on his memories of the ancient Roman structures he saw as a youth and on techniques he learned digging subways in New York and Boston. Only a fraction of his prodigious output is on view, but you can tour his underground living quarters, including bedrooms (one with a fireplace), the kitchen, living room, and bath, as well as a fishpond and auto tunnel. Skylights allow exotic full-grown fruit trees to flourish more than 20 feet belowground.
5021 W. Shaw Ave., 2 blocks east of Hwy. 99, Fresno, California, 93722, United States