Do you know about the corn palace of Sioux City? On the left is the original structure, complete with the onion dome designs found in Russia and Eurasia, built to a much higher spec and quality than it's modern counterpart on the right, which was built recently in modern times. Those who rewrite the history books want to convince you that this structure was originally built to celebrate corn.
It's clear that the technologies which we used to construct the buildings of the past are no longer here. We can only mimic, or rather mock their style. But it's evident that the old world architecture was made to a much higher standard than we know of today.