The Greifs Observatory, located on the top of the hill, is one of the best places to take a photo with it. The nearly 100-year-old Observatory displays astronomical knowledge of the eight planets and cosmic objects. The top ball screen theater is built to mimic the sky, and tourists lean on their seats to enjoy 360° films about the evolution of the celestial body. The tourists seem to be in the vast universe, and the naked eye technology makes the universe close at hand and within reach. The top terrace can also see the entire city of Los Angeles, orderly streets, neat city buildings and urban skyscrapers can be seen at a glance. At sunset, you can see the red sun falling into the sea on the platform. The stargazing platform with giant telescopes is free to the public at night, and visitors can clearly see the stars and even the surface outline of the moon, and experience the magic of the astronomical world. Super recommended!