Built to Last

Golden Gate Bridge: How 4,000 Workers Spun 80,000 Miles of Wire and Bridged San Francisco's Unbridgeable Bay

Hoover Dam: How 21,000 Depression-Era Workers Tamed the Colorado River — With 582 Miles of Cooling Pipe and Sheer Human Grit

Chrysler Building: How William Van Alen Hid a 185-Foot Steel Crown Inside the Tower — and Raised It in 90 Minutes to Steal the Sky