Years ago I read a book about a near miss by an asteroid or comet. I don’t remember the name or author but I remember three things.
Travelers go to Chicago and find it empty and Lake Michigan had tilted and the flood ran through the city.
Astronauts that were stranded came back and ended up landing their capsule in Disneyland.
And at the very end, train travel was the best way to get around and two of the characters were on their way to the dedication of the new Capitol building in DC.