15.july and 11.august??

I'm planning my summervacation in the US this year, and I wanted to check with
any of you US' what I should be sure to check out while over there.

Here is what I've been thinking of, so far:

NASA KSC
Daytona RaceTrack
NewOrleans
LasVegas

I also wanted to take a little part of Canada, the falls up North looks great...

Any tips??

TIA
TommyE