13. Gaze upon a 99½ foot art tower hand-built by one dude
After sobering up in 1921, formerly transient construction worker Simon Rodia spent 33 years building a boat-shaped sculpture with multiple towers, the tallest reaching 99½ feet. Without blueprints, proper construction gear, or assistance, this guy welded structural steel, covered it with mortar, and embedded it with glass bottles, ceramic pieces, seashells, etc. Keep your skyscrapers, financial capitals -- the Watts Towers is the world’s largest construction project created by a single person, and here in LA, we're all about doing it ourselves. Or we're all about ourselves. Whatever!