Ancient city of Tiahuanaco

They settled themselfs in the high mountains of the Andes.
Why they settled themselfs so high up in the mountains I don't know.
Many people would think that these people were crazy to life so high up in the mountains.
There was no life there, only Lamas (original inhabitants in the Andes mountains).
But they build a beautiful city in the middle of nowhere at a lake called Titicaca lake.
Because the city was so well build and such strong walls, and researchers have found gold in the ground in Tiahuanaco,history toled us that they won every battle they fought and it was an enormous city of marketplaces and commerce, people walked for weeks to trade there goods.
Why do I begin about the gold, because Plato said in his story about the sunken city of Atlantis that the rooftops of the buildings were painted in gold, so there is maybe another place where Atlantis is.
NO, Im not convinced that Tiahuanaco is Atlantis because the city lays in the mountains.
Atlantis had also many ships and they went on trading missions with these ships, and they sailed to other continents with these ships, so Tiahuanaco layed in the mountains, so there is now way on earth that Tiahuanaco could be Atlantis.

But suddenly in a very short period of time everbody was going away from Tiahuanaco.
WHY, What was the reason that all the people went away, there were no old stories that Tiahuanaco
was attacked and maybe destroyed, so what was the reason.
A possible explanation is, maybe because the lake (Titicaca lake) started to flood the city (lake is melted icewater), so when you get a hot summer it's going to flood
So the people got wet feet and left the city in a rush.
But if you look at a city thats going under water it looks like it is about to sink. The sunken city Atlantis, Maybe, Who knows?
Many people say that ancient philosophers like Plato are often blowing story's up so more people would read them.
But I believe the story Plato heard from his grandfather, afterall his grandfather had been there.
But the most strange thing is that archeologists never found any body's near Tiahuanaco or in the surrounding fields after the flood, where did this people went, maybe they flew away in there flying machines (Ha Ha).

No, but in all fairness, where DID these went to.
Now that is what the archeologists trouble, no single trace of body or graves, where did they burry the dead. And another thing is really stunning to see, if you see how the walls have been made with such precision, sometimes you can't even put a single piece of paper between two stones in the wall, they MATCH exactly.
How did these people do this, with what kind of tools did they do it. They dug irrigation channels from lake Titicaca to their fields where they grew all kinds of vegtables.
But high up in the mountains it's very cold at night and all the crops were gonna get lost, EHH WRONG.
Somehow they knew this, this is what happend, the water what was running through the fields in the canals cooled down at night causing FOG, and the fog went over the fields keeping the crops warm at night, now tell me are you not surprised or what. How did a primitive civilization like this one knew all these things. They even knew wich season it was telling by the place where the moon stood.
If you look close to the picture above this piece of text you can see somesort of gate in the back of the picture. Now, For example: when you could see the sun come op in (I will call it a dooropening) the hole in the middle of the "dooropening" it was SUMMER.
All kinds of these things indicate on a far advanced civilization, they build things we can't build in present day.
HOW!!!!!!!!!!
WHO!!!!!!!!!!
I believe that the people from Tiahuanaco went up north (now Mexico) and settled there.