inn of the seventh ray ~ nestled in the topanga canyon mountains, this romantic gem is known for their awesome organic/vegan menu
occidental college ~ earthy tones, cozy yet airy outdoor/indoor vibe in eagle rock (inbetween pasadena/downtown la), you would never guess you were at a college campus
marvimon ~ perfect combo of artsy industrial loft and outdoor patio (this is where i wanted to get married but didn't accomodate our large # of guests)
vibiana ~ classy restaurant in downtown la
villa del sol d'oro ~ gorgeous italian villa in sierra madre. this picture doesn't do justice (2nd place i wanted to get married but they didn't have our date available)
i'm a sucker for historical sites for wedding venues (we got married at a museum!)
other options are: the beach (you don't need a permit for your ceremony as long as none of your guests are sitting), mansion/estates, parks...
Here's a great link to peruse: