The answer to the question would have to depend on what the visitor already knows - and especially, what he knows that just isn’t so.My experience of a French family visiting was that they were interested in Native Americans. And also that they were very interested in American food markets.
Also, that the difference in geographical scale between the US as a whole and that of France (which is only about eight-tenths the area of Texas) was disorienting to them even tho they thought they knew it. That difference in scale is reflected in the US attitude towards the price of fuel - since we think nothing of traveling distances which would take a European out of his country, high gasoline prices are a big deal to us. And we buy cars with an eye to taking the family on a long (to a European, very long) trip.
I have known of Europeans visiting New York who thought they would take two days and make a side trip to see Texas.
They really cannot comprehend the size.