Hello,
I wanted to share this to see what you think guys.
It was not easy to do, i had to restart mid project 3 times due to bad planning.
This is wat i came up with. I tried to be as accurate as possible, infact i used 2 old books i found on the internet to see how the old colosseum should look.
These are the books i used:

-This one (i am italian so i am able to read it): https://archive.org/details/gri_33125012907867


-And this : https://gallica.bnf.fr/ark:/12148/bpt6k97882850/f37.item.texteImage.zoom


Talking about measures: Height 50 blocks for now, wifth and lenght 220x188
Coal cubes and wood on the floor are just ellipses i draw for building comodity, but at the end i kinda liked them so i think ill leave them for now


This is still not finished, i miss the hypogeum, the velarium on the top (i still have to think on how to reproduce it), the emperor seat, some decorations, and some arena mod with redstone maybe

Enjoy!

EDIT: i forgot! i used 2 mods, worldedit (because i just did 1/4 and then copypasted ò,ò) and Extrapieces (www.curseforge.com/minecraft/mc-mods/extra-pieces) for vertical slab and sideway stairs.