One of the best destinations in San Francisco, the San Francisco Museum of Modern Art offers the chance to explore seven floors of exceptional modern art, including world-class galleries featuring a distinctive collection of artworks from around the world, as well as seeing Stunning views of the city from the gardens and outdoor terraces. Note that entry is free for visitors 18 years of age or younger, and you can book a tour guide in advance for a unique experience. In addition to the availability of free public tours accompanied by an audio guide.