Ancient structures exist that not only pre-date Adam but point towards a time of technological superiority. Who was here before us?Ancient structures exist that not only pre-date Adam but point towards a time of technological superiority. Who was here before us?Ancient structures exist that not only pre-date Adam but point towards a time of technological superiority. Who was here before us?Ancient structures exist that not only pre-date Adam but point towards a time of technological superiority. Who was here before us?