Culture pionts

Vindication

Senior Citizen
Fighting & supporting will give you a decent amount of 'Battle Points', which will allow you to organize ' Victory Processions' through your city's 'Agora' (lil obelisk next to your 'Senate').

Once you click on your 'Agora', you can see your 'Culture Progress', and once you hit 3/3 CP, you unlock a 3rd slot, and 5/5 will unlock your 4th, and it scales upward from there :)
 

Raevonwolff

Messenger
Sure you figured this out by now, but you can also hold city festivals if your academy is on lv 30 and your warehouse is big enough to hold 18000 resources. Also, you can use gold to hold Olympic games. You can get gold by buying it outright or trading your resources to get it when someone buys resources in the marketplace.