I cannot underscore this comment enough. The largest city in the country (and everyone, even foreigners, know it) and yet less than half the people have guessed it?
Should definitely accept NYC and New York for New York City. The fact that only 50% got the largest city in the US right, despite probably being the first thing everybody tried, is telling.
A little more time would be helpful, especially with some of the more obscure cities on the smaller routes. I was mapping them out in my head and listing every reasonably sized city along them.
Also proud to represent my native Anne Arundel County by identifying Glen Burnie along I-97.
Great quiz! Agree with more time- I'm a road geek that knows where these highways are and ran out of time. Also- you might clarify that you are counting both interstates for the ones in the 80s that have both an eastern and a western section- I kept trying the Eastern I-84 metro areas before realizing you wanted the other one.
Also proud to represent my native Anne Arundel County by identifying Glen Burnie along I-97.