Edward Leedskalnin (1887-1951), reclusive Latvian who built Coral Castle in Homestead, Florida by moving huge blocks of coral weighing several (up to 30) tons. [more]
“The Incredible Mystery Of Coral Castle” by Christopher Dunn, illustrated.
Leedskalnin said that he “discovered the secret of the pyramids.” No one saw how this little man moved these giant coral blocks, but the science of bulding pyramids is not entirely hidden and unknown.
However, due to the impressivene, unusual nature of this feat, there were claims of secret energies found there and a new hidden math (the Coral Castle “code”).