Griffith
PALOMAR MOUNTAIN iimenooute =D
Answer #1:Probably the most famous one is the Palomar Observatory.===================================Answer #2:Here is the name of the famous one.There is another that is less famous.Allen Telescope Array at the Hat Creek Radio Observatory,Fremont Peak ObservatoryGoldstone Deep Space Communications ComplexGriffith ObservatoryLas Cumbres Observatory Global Telescope NetworkLeuschner ObservatoryLick ObservatoryMount Wilson ObservatoryOwens Valley Radio Observatory & Solar ArrayPalomar ObservatoryStony Ridge ObservatoryTable Mountain Observatory
Greenwich
The web address of the Griffith Observatory is: http://www.griffithobservatory.org
The Hale telescope is at the Palomar Observatory, located in Mount Palomar, California.
The phone number of the Griffith Observatory is: 323-664-1181.
The phone number of the Friends Of The Observatory is: 213-473-0879.
It is located in Lake Arrowhead, California.
stonehenge
Greenwich is a town and famous observatory in England.
The web address of the Mount Wilson Observatory is: http://www.mtwilson.edu
The phone number of the Mount Wilson Observatory is: 626-440-1136.