I thought I'd bring up Edward Leedskalnin.
Edward was five foot tall, 100 pound Latvian immigrant who built on one of the most amazing structures called Coral Castle in Homestead, Florida. It has been compared to the pyramids, Stonehenge and ancient Greek temples.
And it was all put together by one man. Check out the link : http://coralcastle.com/ and read the background information on this extraordinary feat by this secretive individual.
Funny how things like this are not mentioned in the classrooms or history books.
The man was truly in love, and what he did for his love is something that remains a mystery right to his death.
What did Edward possibly know about levitation, and even anti-gravity ?