While Europe was still bumbling about its Dark Ages, the Angkor / Khmer people were building something amazing. And now Lidar is revealing it. Very cool.
Angkor Wat is definitely on my bucket list.
Revealed: vast medieval cities hidden beneath the Cambodian jungle | World news | The Guardian
I’d love to see those cities, and I hope you are someday able to make the trip – but Europe was not bumbling around. There were huge cathedrals being built. Books before the printing press were illuminated works of art. Agriculture was changing, new plows were invented and crop rotation came into use. Slavery was losing ground, and charitable works by churches were gaining. Handwriting was being standardized. It is not a time in which I would wish to live – in Europe or Cambodia, but it is an interesting time in Europe, and would be better known as the Migration Time or the Early Middle Ages rather than Dark Ages, which IIRC, was a pejorative term made up by Petrarch.
Good luck going to see those ancient cities, because you always take such wonderful photos of your trips!