Griffith Observatory in Terminator
Griffith Observatory is the location where the first T-800 Terminator arrives on May 12, 1984 to find and kill Sarah Connor. When the T-800 arrives, its time travel sphere frightened a garbage truck driver into fleeing the scene. The T-800 also encounters a group of three aggressive punks who threatened it when it demanded their clothes. The Terminator easily killed two, took the clothes of another before beginning its mission.
Terminator 3: The Redemption
The ruin of the Griffith Observatory is one of the major battlefields where the T-850 fought along with the Resistance soldier against the Skynet force.
In 2018, Kyle Reese and Star were living in the ruins of the Griffith Observatory. It is in the parking lot of this observatory that Marcus Wright found a Jeep and works on it until it was in running condition.
The T-800 arrived in 1984 outside the Griffith Observatory.
In an alternative timeline in 1984, as the T-800 talked to the punks, an older T-800 showed up and battled the Terminator outside the Griffith Observatory. Their fight ended as Sarah Connor took down the T-800 with a .50-caliber sniper rifle.
Skynet Central Core was located under the Griffith Observatory before it was relocated.