What if the Colosseum was actually a giant dome, like the capital building of the world or something?

Compare :

 https://image.nostr.build/31ac19405cefdaa6232562252d6f48bb59b424428cd84c0c98402a007d11cf95.jpg

 https://image.nostr.build/5ca6740ba8a586d857eef8bbaeb2b38a5c3944c33a14aac2b21d98e8cfed1d94.jpg


See!?!? What happened!?!?!?