Made of rope, wood, stone, iron, steel - and the human impulse to reach out and explore - bridges are an elegant resolution of the age-old struggle with nature. Connecting people and places, bridges provide passage, bridge gaps and are continually evolving to meet human demands.

Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware. Encoded with permission for digital streaming by Infobase on October 14, 2010.

Introduction to Bridges (3:46) -- Early Bridge Builders (2:34) -- New London Bridge (1:24) -- Great Bridges of Paris (2:21) -- Cast Iron Bridges (3:09) -- Truss Bridges (2:42) -- Brooklyn Bridge (4:08) -- San Francisco Oakland Bay Bridge (3:24) -- Golden Gate Bridge (2:05) -- Bridges of Central Park (2:06) -- Bridges of Pittsburgh (3:49) -- Movable Bridges (4:27) -- Future of Bridges (4:22) -- Super Spans and Bridge Maintenance (2:48) -- Credits: Modern Marvels: Bridges (1:06).