What can be considered as America's true culture?

America was discovered by Amerigo Vespucci, an Italian navigator and from whom America was named after, but then came also the Puritans, and the French, and the Swedes, the Dutch and so on...I would say, America has no culture of it's own, except that of the Indians, the original people of the New World, which is now America. Pardon me if I am wrong.