Great place for art viewing. & Lots of great restaurants all around the museum.
The SF Museum of modern art is huge! Each floor has great exhibits and very informative.
Support the arts! SFMOMA always brings a delightful series of exhibitions to our fair city. It's clean, well curated and you can literally get lost here for an entire day. Worry not, as the restaurant and cafe are top notch. They also have an app that you can use as part of an interactive tour of the exhibitions. Highly recommend!