India, Jan. 15 -- The U.S. is the fourth largest country by land mass, with over 3.5 million square miles to explore. It's home to 63 national parks and some of the most well-loved cities in the world. We've got Alaska for those looking for extreme wilderness and Hawaii for those looking for an island beach vacation.

In fact, America is so big that you could live your whole life without leaving the country-and many do. But you don't need to limit yourself to the confines of the U.S. just because you don't have a passport or are waiting for a new one to arrive. There are several international destinations Americans can visit with no passport at all. (It's worth noting that a Real ID will be required at TSA checkpoints.)

American Samoa T...