coral castle - ed leedskalnin

...Edward Leedskalnin was jilted by his 16-year-old fiancée, he spent over 28 years building the Coral Castle in Florida, refusing to allow anyone to view him while he worked. A few teenagers claimed to have witnessed his work, reporting that he had caused the blocks of coral to move like lightweight balloons...

 Leedskalnin never told anyone who asked him how he made the castle. He would simply answer "It's not difficult if you know how."

Some believed that the  5'1" man who died in 1951 knew the secrets of the ancient builders. He built coral castle by quarrying, shaping and placing 10 to 30 ton blocks of limestone all alone. He never had a day of college but he somehow knew the secret of atoms, creation, magnetism, vortexes (basis of hurricanes, tornados) and levitation. In wrong hands, this knowledge would be a total destruction.

When asked why he had built the castle, Leedskalnin would vaguely answer it was for his "Sweet Sixteen."