EDIT: There was an article here in regards to the thread title that has been shown to be misleading.
If you'd have asked me a few years ago I would have said it was solely aliens alone that built them, but given what I've learnt about Nikola Telsa over these last few years I really couldn't say now, but when we look at artefacts, drawings and ornaments from thousands of years ago depicting the modern day image of an alien, I still wouldn't rule them out.
If you'd have asked me a few years ago I would have said it was solely aliens alone that built them, but given what I've learnt about Nikola Telsa over these last few years I really couldn't say now, but when we look at artefacts, drawings and ornaments from thousands of years ago depicting the modern day image of an alien, I still wouldn't rule them out.