Deep below the earth in Southern Indiana is a sea of limestone that is one of the richest deposits of top-quality limestone found anywhere on earth. New York City's Empire State Building and Rockefeller Center as well as the Pentagon and the U.S. Treasury are built from limestone.
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Before Indianapolis, Corydon served as the state's capitol from 1816-1825. Vincennes was the capital when Indiana was a territory.
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True to its motto, "Cross Roads of America" Indiana has more miles of Interstate Highway per square mile than any other state. The Indiana state Motto, can be traced back to the early 1800s.