
I was reminded today that the question didn't say U.S. but North America. For me I consider US and Canada North America but according to wiki Mexico is also part of North America. I forget the exact question but it might have been something like Mayan ruin in North America or Aztec ruin in North America. I think the Mayan ruins are in what's considered Central America. Aztecs in Mexico. The answer might have been Chichen Itza which is right near the border between Mexico and Guatamala. Guatamala is considered Central America, Mexico North America. Ah, stuff you learn playing Trivial Pursuit.