Deconstructing History: Empire State Building

Experience the sights and sounds of New York City as if you were visiting in the 1940s. A lot has changed since then, but not everything.

When it was completed in 1931, New York's Empire State building was the world's tallest skyscraper. How was it designed and built?

Stretching 17 miles across the Chesapeake Bay, the Chesapeake Bay Bridge is an engineering feat. How long did the bridge take to complete?

Opened in 1825, the Erie Canal was one of the most extraordinary engineering feats of the 19th century.