off-topic, faggot.  it wasn't aliens or any more advanced than waht other people had alraedy done elsewhere in the world, in fact they were taught how to do these things by people from the other half of the world.  no lasers in volved or advanced tools. they had some basic understanding of how to create alloys and tools, but once again they were taught that from outsiders. they didn't melt the stones together or anything like that, no computers, lasers etc. just basic square, different tools.. other stones. can you believe it? they bashed smaller rocks against bigger rocks and then polished and sanded and smoothed them down to smoother surfaces and straighter edges.
United States