For anyone in or visiting SoCal, there's an Oscar Rejlander exhibition at The Getty museum. I was there the other day and really enjoyed seeing his images from a time where photography was still in it's infancy. Many legendary people he took portraits of, as well as some landscapes and other images.

Highly recommended, and the museum is free! (They do hit you with a $20 parking charge, but you can take a bus or Uber there).