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The Gateway Arch is as wide as it is tall

The Gateway Arch is 630 feet tall and 630 feet wide from one outer leg to the other.

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Each leg is an equilateral triangle in cross section. The outer skin is stainless steel a quarter of an inch thick.

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The founder of the Nobel Prize invented dynamite

Alfred Nobel, who invented dynamite, held 355 patents.

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Jamestown was England's first lasting American colony

In 1607 England established Jamestown, its first permanent colony in America.

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D-Day used the largest armada in history

More than 4,000 American, British, and Canadian ships made up the armada for the D-Day landings of June 6, 1944.

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