Said slightly tongue in cheek, but you could also research where you can see the border without the wall. Or see sections of the old wall/fence.
There’s an ancient trail along the present day AZ/MX border called El Camino Del Diablo (The Devil’s Highway)...
Formerly named US Route 666 (hence the devil reference) but since renamed to Route 191 in AZ. Haven't been on it in since I was ten, but back then it was known for tight hairpin curves with no guardrails. Back then, it did live up to the nickname.