A couple blocks east of Petco Park, the city's newest landmark (2013) is a beauty. Crowned by a steel and mesh dome, the futuristic, nine-story library features art-filled public spaces and plenty of learning opportunities. The roof deck offers one-of-a-kind views, clear to Mexico weather permitting. Guided and self-guided tours are available, or just wander. Architects: Rob Wellington Quigley, who also designed the New Children's Museum , and Tucker Sadler & Associates.