I lean towards the old tech theory. When considering the similarity of buildings across several continents, of which share similar architecture..... even in today's terms they would be cost prohibitive. Some buildings we can't even replicate. The precision involved is no less impressive than other great wonders on the world.

In relation to that viewpoint the consensus is that buildings like the one pictured, with a dome, were functional in terms of energy harvesters. Using the aether itself and drawing from it certain waveforms that when concentrated provided healing properties and rejuvenation. Cathedrals are a glaring example of the same principal, typically having two spires. Cathedral, the name derrived from Cath. Similar language in science brings us the word Cathode. The opposite of the Cathode is the Anode. Each being equitable in pairs, the two spires were more than just decorative architecture.

True this is a theory, and as such raises questions then as to why aren't these places producing any measurable energy. First of all, before the cataclysm the Earths Axis was different. That's how old we're talking here, however if you are thinking damn this makes sense but they can't be that old..... Your right. If you believe this could be true, is it that hard to believe they lied about everything else ..... including the timeline? Secondly, each structure has its own resonant frequency. Every frequency has a cymatic signature. Stained glass windows as well as exterior ornamentation of these buildings ALWAYS have its resonant cymatic pattern decorated in plain sight, for all too see. This was important in a different time than ours, that knowledge is hidden away from humanity.

History is written by the victors. Sometimes the losers are the ones that really won! If you don't understand, History is written by the victors.

Carry On!!!