Fun thing - according to arab myths,there existed lost city of Iram/Ubar which according to 1000 night stories had palace with 1000 golden columns and were defended by 1000 castles with 1000 mamluks each.
Of course,nothing like that existed - but there is many old ruins in SA and Oman which as claimed as Iram.
In Honduras there is legend of "Ciudad Bianca/white city" which was discovered in 2015 - totally unknown culture destroyed by european plagueas before spaniards could come.
And they discovered there remnants of many cities,not one.
So,apparently human memory work in starnge way - many cities turn into one,but with unreal power and treasures.