Myths obscure the truth of two pioneering flights. Charles Lindbergh was far from the first man to fly the Atlantic. The biggest danger astronaut John Glenn faced wasn't a problem with his heat shield during reentry but on the launch pad.

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.

Did an alien spaceship crash in Roswell, New Mexico in 1947? Are scientists reverse-engineering extraterrestrial technology in the Nevada desert's Area 51? Conspiracy theorists have no doubts. But the facts tell a very different story.