You couldn’t rebuild it today. It still has the world’s largest cupola, and we have still don’t know how to build one that big, otherwise someone would have al

You couldn’t rebuild it today. It still has the world’s largest cupola, and we have still don’t know how to build one that big, otherwise someone would have already done it. So, it would not be possible to build such a building today, even though they did build one thousands of years ago.