Stonehenge

[BLaCk_1cE]

Check it out, pretty sweet.

http://www.youtube.com/watch?v=lRRDzFROMx0&feature=related
Comments on the video in youtube are interesting as well, there are also good objections as well.

Also see: Coral Castle

[Kevin 1G Drummer]

Very interesting :)

[JET]

Pretty amazing what some ingenuity will do!

[TkrPerformance]

you dont need heavy equipment to move things