In the 1960s in the United States a large number number of suspended monorails systems were opened but none were for transit. These included 1962 at the LA County Fair (closed late 1990s), 1964-1965 at the New York World's Fair, in 1964 at Houston International Airport (closed 1966) and in 1966 at two Busch Gardens parks at Van Nuys in California (closed 1979), Tampa in Florida (closed 1999).