"We don't know whether Ed Leedskalnin used the same techniques as Wally Wallington, but we clearly have to acknowledge that there are ways to do it without machinery. When asked how he built his castle, Ed would answer "It's not difficult if you know how," and according to Coral Castle's web site, he said he was able to move the heavy blocks because he "understood the laws of weight and leverage well." Sounds to me like he figured things out the same way Wallington did."
"There are photographs of Ed at work on his castle, lifting his blocks with a large tripod made of telephone poles perhaps 25 feet tall, using chains and a block and tackle system. When he once disassembled and relocated Rock Gate Park a few miles from Florida City to Homestead to escape an encroaching subdivision, the blocks were moved on a flatbed trailer towed behind a rented tractor. But his use of tripod cranes and tractors don't seem to fit in very well with the magnetic energy vortex theories, and so you won't find references to these pictures on most Coral Castle web sites."
"Using a block and tackle in this manner is called mechanical advantage, and it's what allowed Archimedes to once lift an entire warship full of men using only a block and tackle and his own strength."
"Before Ed moved from Latvia at age 26, he grew up in a family of stone masons. Very little is known about what type of stone mason work he did in Latvia, but it probably explains his interest and knowledge of quarrying, cutting, and carving stone. He then lived in Canada and worked as a lumberjack, work which is largely about moving felled trees. A tree the weight of Ed's largest coral block, 30 tons, is not at all uncommon some trees can weigh hundreds of tons. Before Ed ever started work on Coral Castle, he had a wealth of work experience that gave him all the knowledge he'd ever need to build his creation. It's simply not necessary to invoke made-up mystical powers, aliens, or magnetic vortex energy to explain Coral Castle."