Didn't the natives have houses or did they just not survive the colonisation?
Many of the indigenous villages in the mid-Atlantic area were burned by the English for one reason or another. I suspect many permanent settlements elsewhere suffered similar fates.
I guess the point being simply that it seems more thought could have been put into the states where Native American structures have survived.
A lot of white peoples' buildings didn't survive either. I'm actually kind of curious how different this list would be if Sherman didn't burn a bunch of southern cities during the Civil War.
He also destroyed some stuff in SC afterwards.