How These World-Famous Structures Were Actually Built

The history of civilization is filled with incredible feats of architecture and human ingenuity. But have you ever looked at world-famous structures and wondered how the heck they were made? Keep watching to discover the truth behind these landmarks.

Building a bridge is always hard work, but building one that stretches over a mile across the Golden Gate Strait in San Francisco is a whole other level of difficulty. This was the reality that the city faced in 1916, and it looked like it couldn't be done. A bridge that long would easily cost hundreds of millions of dollars, an unthinkable sum at the time. But Joseph Strauss, an engineer from Chicago, had a better idea. His concept for a bridge would cost less than $50 million.

Bureaucratic delays and an angry campaign from local ferry companies held up construction until 1933. While the bridge's construction was considered a major stepping stone in safety at the time, 11 people died while making it. Another 19 were saved from death by a net strung under the bridge's construction. They began to call themselves the "Halfway to Hell Club." The Golden Gate Bridge was completed in May 1937, six months earlier than planned. It also came in under budget, with a final cost of $39 million. It was painted its current hue to make it more visible to ships and planes.

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Golden Gate Bridge | 0:00
Eiffel Tower | 1:11
Space Needle | 2:14
Leaning Tower of Pisa | 3:21
Gateway Arch | 4:25
Pyramids of Giza | 5:25
Big Ben | 6:24
Sydney Opera House | 7:28
The Colosseum | 8:47
Dome of the Rock | 9:56

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