California doesn't have one designated state monument; it does, however, have 138 national historic landmarks, 35 national natural landmarks, and 25 national parks. But if I had to pick one to be the official state monument, it'd be a toss-up between the Hollywood sign and Cinderella's Castle at Disneyland.
National is an adjective; monument is a noun.
Petroglyph National Monument was created in 1990.
In 1890.
The Washington Monument
The Giant Sequoia National Monument comprises 328,315 acres of California's Sequoia National Forest. It was designated a National Monument in April 2000.
The state that Homestead National Monument is in is Nebraska.
Yes, Pipestone National Monument. www.nps.gov/pipe
Wupatki National Monument was created in 1924.
National Monument of Scotland was created in 1829.
Soldiers' National Monument was created in 1869.
Cabrillo National Monument was created in 1913.