Myths obscure the truth about Pocahontas and America's renowned explorers, Lewis and Clark. Pocahontas allegedly saved the life of Englishman John Smith and we remember them as lovers, but she actually married another John. The exploits of Meriwether Lewis and William Clark were forgotten for a century.

Myths surround America's most secret vaults. The interior of Fort Knox looks nothing like it does in the movie "Goldfinger" and the $250 billion of gold in the Federal Reserve Bank of New York is protected by low-tech technology built in 1924.