Utah is the only State I haven't been to, seen the other 49
Utah is one of the prettiest states with beautiful parks and Salt Lake City is probably the cleanest big city in the nation - it's only difficult to get a coffee. But Utah is certainly worth a trip.
I have been to most places in Europe and the US and Sout America, Asia and Africa are not on my radar screen - except Alexandria in Egypt. That was a fascinating town before the Romans and in the 20s and 30s.
Barcelona is another place I have not yet seen and that looks like a worthwhile destination.