Follow the race to rebuild the Old Blenheim Bridge in New York State, an icon of 19th century American engineering, destroyed by Hurricane Irene in 2011. Watch a team of elite craftsmen faithfully reproduce the massive, intricate wooden structure und... (more)er grueling time pressure as flooding threatens their worksite. In China, witness craftsmen restoring thousand-year-old covered bridges based on ingenious frameworks of woven timber beams. Discover how Chinese artisans are keeping traditional skills alive to ensure the survival of these stunning ancient structures.