Joe Mcmoneagle did an "explorer" session which ended up being the construction of the Great Pyramid. In it he received data that the blocks were cut and floated into place on waterways. There is now evidence that is exactly what happened.
http://www.unexplained-mysteries.com/news/311879/pyramid-construction-mystery-has-been-solved
http://www.unexplained-mysteries.com/news/311879/pyramid-construction-mystery-has-been-solved