Can you imagine setting a record before you were even old enough to realize what you were doing?
Now that they've been to 49 states, Harper could very well become the youngest person ever to visit all 50 states.
It turns out the last destination on their checklist is Vermont, and, as Cindy revealed in this tweet, they would love to make it extra special by maybe possibly being able to meet Bernie Sanders in his home state.
You should know the couple plans the route and limits their time in the car to under five hours.
Now, check out more of Harper's unforgettable state snapshots so far!