From 18th-century Spain to modern-day rocket silos, Santa Barbara’s Gaviota Coast is overflowing with history, beautiful quiet beaches, and the state’s most expensive ranch. Originally farmed by the Chumash Indians, El Rancho Tajiguas was part of the great rancho development of Spain’s King Carlos, III. And in modern celebrity history, a portion was once owned by John Travolta. Purchased in the early 1980s by the TAG Group Limited as a corporate retreat, the 3,500-acre ranch with its recently built two ocean-facing, Spanish-style villas is for sale, priced at $110 million.