Quest of the Delta Knights is a 1993 fantasyadventure sword and sorcery film that was featured in a September 1998 episode of Mystery Science Theater 3000. It is one of only a few movies shown on MST3K that was made in the 1990s.
A large portion of this movie was filmed at the Renaissance Pleasure Faire in Black Point, Novato, California. Performers from the Faire were employed as extras in various scenes throughout. Exterior scenes of Archimedes storehouse were filmed at the Palace of Fine Arts, San Francisco, California. Exterior scenes of the prison were filmed at Petaluma Adobe State Historic Park, Petaluma, California. Some interior scenes of the Mannerjays palace were filmed at the Scottish Rite Temple, Oakland, California.
Source: Wikipedia