The Purpose Behind San Francisco's Weirdest Looking Tower

At 977 feet tall and situated atop the peak of San Francisco's biggest hill, the three-legged Sutro Tower dominates the city's skyline. But this isn't some grand scale art installation like Cupid's Span; this massive structure acts as a vital part of San Francisco's communications infrastructure, bouncing radio waves… » 3/16/14 12:00pm 3/16/14 12:00pm