Arguably California's home of Cabernet Sauvignon, some of the best vineyards are located in the confines of Oakville. Heitz Cellars’ Martha’s Vineyard has long been regarded as one of the best in the world. This is arguably the most famous spot as well. Famous wineries both new and old abound, none more so than Robert Mondavi and his joint project with the Rothschild family of Bordeaux appropriately named Opus One. Opus One was for many years the leader in terms of quality, technology, prestige and price for Oakville, though today the sheer volume of production from Opus One has allowed it to be passed by other cult Cabernets such as Bryant Family, Harlan and Screaming Eagle.