Our U3A have a new group called Oddballs. It discusses anything "Odd"
Like UFO's, poltergeists, reincarnation, transgression and today's topic was the pyramids. It was fascinating. Built 20000 - 30000 years ago.
Majority of the blocks weighing 2.5 tons and some up to 20 tons. One theory is they transported them by boat and rowed them down the river to the site.
But how do they get them in the boat and why does it not sink.
Did you know there is a pyramid on Mars. That also gives rise to the theory the pyramids were built by aliens.