When I first moved to Napa, I met people who said they worked at the CIA. I thought how strange that they live in Napa and not Washington DC. I now know when locals say CIA they mean Culirnary Institute of America. CIA's Napa Valley Campus has occupied the former Christian Brothers Winery — Greystone Cellars “the largest stone winery in the world.” Greystone is on Highway 29, just north of the town of St. Helena.
Greystone's exterior walls are 22-inch thick tufa stone. Built in 1888 it has survived two major earthquakes. Greystone was used by the Christian Brothers to make sparkling wines from 1950 to 1989.
