Venice High School (Grease)
Excelsior High School (Grease 2)
Unlike Grease 1978's filming locations, all of Grease 2's Rydell scenes were filmed on-site at Excelsior High School (Excelsiorpilots.com).
West of the main building, its north end is where Steph reamed Michael Carrington with Cool Rider (Song). Same north area is where Johnny Nogerelli and Michael did their transaction, in the fenced-in hallway. The entrance for the June Moon Talent Show was on its west side.
The Rydell cafeteria, where Charades was filmed, is actually not the actual Excelsior High School cafeteria - that's actually at the north end of the school, near the tree Steph was leaning against when Mr. Stuart arrived.
Track & Field
Where Coach Calhoun was drilling the T-Birds, using a Tackling Sled, which - on Calhoun's orders - they pushed towards an open hole in the field.
3D model of Rydell