China Builds World's Tallest Bridge: Towers 9 Times Higher Than Golden Gate
The new sky-high mega-bridge soars above a canyon in rural China, slashing travel times from over an hour to two minutes.
PBS13 年
Spinning the Cables
When the weather was good, the wheels took just ... Mother Nature set up one of the most formidable obstacles for the Golden Gate Bridge's builders. In January 1933, work began on the bridge's ...