There’s an old NOVA episode “This Old Pyramid” that applied experimental archaeology to the Egyptian pyramids: exploring how the pyramids were built by actually building one.
Going even further back in time, Kon-Tiki back in 1947 demonstrated it was indeed possible to travel on a balsa wood raft to get from South America to Polynesia, settling that part of the debate.
Of course, Heyerdahl's diffusion model was completely wrong, but that's a different topic.
The follow-up attempt in 1999 where the team succeeds in raising a large obelisk by slowly draining sand out of a pit underneath it is a great watch.