There was very little lifting required in building Stonehenge.
The most logical explanation is that they just built up earth banks around where they wanted to put things, rolled the stuff up with logs/ropes and then dug a hole to slide it down into. The lintels would have been rolled into place and then all of the surrounding earth removed.
Frighteningly time consuming but then think about what technology existed then and when the pyramids were built.
Stonehenge was meant to connect with Avebury and the Ridgeway, but they cancelled that because of escalating costs. Devizes only recovered when the canals arrived.
There was very little lifting required in building Stonehenge.
The most logical explanation is that they just built up earth banks around where they wanted to put things, rolled the stuff up with logs/ropes and then dug a hole to slide it down into. The lintels would have been rolled into place and then all of the surrounding earth removed.
Frighteningly time consuming but then think about what technology existed then and when the pyramids were built.