How Bridges Stay Connected During an Earthquake

The Millennium Bridge connects the City of London with the South Bank of the Thames. Built to celebrate the new millennium, it’s a suspension bridge, but its pylons veer out in order not to obliterate the fine views. Nicknamed the “blade of light” for its sleek design, it connects old and new: St. Paul’s Cathedral with the Tate Modern art gallery. Watch the full one-hour long special,