Cable cars and crooked streets. Hills like roller coasters. No wonder kids like this place. Whether they’re two, 12 or 22 they’ll never forget that boisterous group of sea lions at PIER 39 or Claude, the rather placid albino alligator at the California Academy of Sciences. And that’s just the animal life. We’ve got a science museum that broke the mold, the most famous bridge in the world and neighborhoods with international flair.