The Armand Hammer museum was founded from the art collection of the famous industrialist, but beyond his more traditional collection it mostly houses contemporary art and a series of changing exhibits. It is not a large museum, nor does it contain "blockbuster" artwork, but it more than a worthwhile visit.
The museum straddles Wilshire Blvd. and another street, I believe Linbrook Drive (the name is obscured on my map). You can enter on either street, but Linbrook is by far the more impressive and in keeping with the general modern tenor of the museum.
The museum is on three floors, but most of the art is on the third floor, as is the excellent art book shop. The second floor has a cafe and the Billy Wilder theater.
Incidentally, both Armand Hammer and Billy Wilder are buried in a wonderful little cemetery hidden by high rises about a block and a half from the museum. Marilyn Monroe, Jack Lemmon, Natalie Wood, Bob Crane, and others are there as well.
The permanent Armand Hammer collection is worthwhile. There were two Van Gogh's I had never heard of before, let alone seen, as well as one or two nice paintings from several other great 19th century painters (to my recollection, Monet, Toulouse-Lautrec, Degas, Pissaro, Bernard, Sargent, and others). My favorite was a French bulldog on a table, presumably the artist's pet, by Toulouse-Lautrec, but there are others to enjoy.
They change the contemporary art exhibit. The exhibit I saw was on its last day, so I won't describe it, but I will say that it was well presented. They also had some video of the artist in her studio that was welcome and gave you a good sense of her charming personality as she created her work.
When I was there (late April, 2012), they were not only changing exhibits, but also renovating the courtyard in the center of the museum. I think it will be even nicer when they are done.
In the book shop I saw a postcard of a work I wanted to see. Apparently, it was not then on display (it is an engraving and likely to fade, so I'm fine with that), but they immediately offered me an appointment to come and see it privately if I wished, which I thought was extremely cool. All of the staff, including the guards, were extremely nice during my visit.
The admission is $10 and there is a nice cafe inside. I think it's 60-90 minutes well spent.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.