Up the Rio Magdalena river drainage system of Colombia, about a hundred miles from the caribbean coast, in the highlands of the northern extremity of the Andes mountain chain, are the ruins at San Augustin, some of them very nicely preserved since ancient times, built of megaliths, some with columns depicting humans which hold up flat stone slabs overhead, as the eighty foot atlanteans at Tula in Mexico probably held up a lighter wooden roof, but the design is the same, clearly built by atlanteans from Atlantis in the 1500 b.c. timeframe, when ancient shang navigators from China were settling too but from the west in the region of the panama isthmus.
A huge megalithic hill-fort religious complex was discovered in the caribbean coastal jungles of Columbia in the 1970′s (not too far from the mouth of the Rio Magdalena river), called La Perdida, a very impressive site surely anciently built by sophisticated engineers and stonemasons of Atlantis, particularly since the Antisuyo tribe of the northern Andes, and much of Colombia, were named after Antaeus, a son of Posidon, who was Sidon, a son of Canaan, son of Ham, which is where things really get interesting. See how they astronomically measured the earth by what the Chinese call ”son wu” in article #2 at http://IceAgeCivilizations.com, the same method of the chaldeans, egyptians, atlanteans, ionians, and anybody else in the ancient world who practiced precise geometry, son wu. See too http://genesisveracityfoundation.com.