Denny's windmill spins again. The windmill atop Denny's at northeast corner of Santa Anita Avenue and Huntington Drive was designed by Harold Bissner as the template for Van de Kamp's Holland Dutch Bakery's coffee shop franchise. It opened in 1967 in Arcadia, the first of 15 built from his designs. Denny's bought the location in 1989. Denny's spent $100,000 refurbishing the windmill.