Watch Modern Marvels online: Episode 16 New York Bridges

This episode visits the Brooklyn and George Washington Bridges, the Tri-Borough and the 59th Street. In the stone and steel of these edifices the history of modern bridge building can be seen. But they are more than just engineering marvels, and there are many more bridges than most people know. All-told, 18 spans link Manhattan to the mainland and Long Island, and each one has its own tale.

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