Most likely the same way the Egyptians did, building a ramp. In this case they must have built up a bridging of temporary stones between the supporting columns so they are of same level, then by building ramps on both sides to buttress the whole unit, so it is strong enough to support the overhead stone being pulled up one of the ramps, when they were done and the stone was in place, they simply removed the ramps along with the temporary bridging of stones between the columns.
Two words, mechanical advantage.
Giant stones (e.g. the Stonehenge stones) from prehistoric times.
The major stones of Stonehenge are mostly sandstone, others are igneous rocks.
Yes.
There are several theories. see http://en.wikipedia.org/wiki/Stonehenge#Stonehenge_3_I_.28ca._2600_BC.29
you can find many different stones and much, much, more
Stonehenge is a monument that is made out of large stones. There is a circle of stones in Stonehenge, with several stones laying on top of the vertical stones.
There are 92 stones at Stonehenge at the present time
It is believed that all the stones in Stonehenge weigh over 320 tons.
Stonehenge is made up of an estimated 80-82 stones, consisting of large Sarsen stones, smaller Bluestones, and other stones in various formations.
Giant stones (e.g. the Stonehenge stones) from prehistoric times.
The stones at Stonehenge have never been to London. They came to Stonehenge from Wales and archaeologists are still arguing about how they got there and how they were erected.
The major stones of Stonehenge are mostly sandstone, others are igneous rocks.
Stonehenge phase 1 is the circular earth works that forms the outer part of the monument. The sarsen stones and blue stones are in the center of the earthworks.
sarsens
Yes.
the stones in the stone hedge are as thick as 3 feet.
Because they have a bluish tinge to their colour.