![How the Colosseum Was Built—and Why It Was an Architectural Marvel](https://ic-cdn.flipboard.com/history.com/acd074d2ea35535f1132bd480ba0b3b36f789bbc/_xlarge.jpeg)
The iconic Roman structure stood as the largest and most complex permanent amphitheater in the ancient world. The Flavian Amphitheater, better known …
* View the article originally published here. ** More curations: Al Cannistra at San Antonio ONE here.