In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Seven U.S. states are named after sovereigns - four kings and three queens.
5
According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
223
There are six times as many people of Irish descent living in America than in Ireland.
15
During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
50% of pizzas in America are pepperoni.
183
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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