Why not even staying in the United States?
After United States you should have made at least once a journey in life. There there to much. Even with the car or even with a Campingmobil you can do great and individual tours through this country. Not everyday is therefore programmed.
If you have less time available, He can perform a city tour in one of the great cities of the United States, How about New York, There are often cheap deals, or even Miami, in the sunny State of Florida, visit the spectacular sites of Chicago and the Niagara falls, and much more.
A United States vacation brings lots of new ideas, is it the United States have long been a pioneer for new trends, not only in electronics. Much what in Europe is considered modern, comes from the States, There are many people on the thinking and exploring, and probably also a certain flair for marketing is there probably more than in the old world.
Also you can look at the latest trends and news in relation to amusement parks, also one thing, She're interested in more and more people. It can be found really enough in the United States, How about the Disneyland in Orlando.