Need Help! Similarities/Differences of Stonehenge and Great Pyramid of Giza?

Question

I have to give a presentation tonight, and its on the Similarities/Differences of Stonehenge and the Great Pyramid of Giza. I already have a lot of differences down, but I need to know some similarities? Feel free to expand/agree/disagree on my thoughts I have listed below!

Similarities:

They were both made of stone

Tons of manpower

Took a long time to build

Answer 1

Both were precisely aligned astronomically

Both are architectual masterpieces that even today with computers and machines would be VERY hard to construct

Both had religious significance

Both have stood the test of time and will most likely still be standing in another 1000 years

I'll try to think of some more

Answer 2

pyramid guys were mean to me. stonehenge people had good food at craft table. many breaks.  

Answer 3

both were most likely considered sacred