as much as I'd like to travel overseas, it's a lot cheaper for me to travel within the US and surrounding areas. So far I've been to Canada (PEI, Toronto, Kingston, other areas), most of the northeast of the US (NYC, Philadelphia, Boston, Washington DC + lots and lots of other areas) + Florida & Arizona, and I've been on 2 cruises that took me to Mexico, Honduras, Cayman Islands, Belize, and the Bahamas.
So without even leaving the Americas I've probably traveled over a broader area than most people on this website. As some people have stated, unless you are going for the culture (totally not my thing ) then there is a ton to see without leaving this side of the world