Bill & Ted's Bogus Journey (1991)
The not-so-righteous sequel to Excellent Adventure puts the stoner rocker duo back in L.A. where they belong (though still not in the actual San Dimas). Most of the film was shot on sets in Valencia, CA (likely at Santa Clarita Studios) but a few locations were in and around Northridge & Santa Clarita.
The futuristic "Bill and Ted University" was filmed at the Japanese Garden in Van Nuys, CA (thanks to B). This same location represented Starfleet Academy in Star Trek: The Next Generation.
The auditorium where the "Battle of the Bands" takes places was Santa Monica Civic Auditorium at 1855 Main Street in Santa Monica.
Bill and Ted are living together at the Hollywood Riviera Condominiums at 1400 North Hayworth Avenue in West Hollywood.
The large stone formations where the evil robots take Bill and Ted is Vasquez Rocks County Park at 10700 Escondido Canyon Road, Santa Clarita. This spot has been featured in countless productions over the years, including the Star Trek episode they watch on TV earlier.
GPS Coordinates (van spot):
34.485154, -118.314640
GPS Coordinates (heading up):
34.485693, -118.314329
GPS Coordinates (bottom of cliff):
34.486354, -118.314584
The dead Bill & Ted head back into town on Agua Dulce Canyon Road in Escondido Canyon, just south of the 14 Freeway from Vasquez Rocks.
GPS Coordinates: