We are headed to Colorado Springs from Dallas in late July-a permanent move, but only will have a vehicle and luggage, not our household goods-

We are planning on spreading the trip out over at least 3-4 days, as we haven't traveled long distances for a couple of years, and we have kids! (9 year old boy and 7 year old girl ) :) We don't mind spending the night in the same area twice if there is an all day thing we would like to do. It's sort of a mini-one way-vacation
My questions are these:

1. What are some family friendly things to do along the way? National Parks, ect....(but they have to be wheelchair friendly!)

2. Is there any thing interesting, out of the ordinary or things we just shouldn't miss along the way? Historical value, ect?

Thanks for the help!