Random event.

Hello everyone, well. I've been curious about it for some time now. Currently, I am creating a map based on the great city of São Paulo (Brazil), and a while ago, I learned that in Omsi, I also excised the random events. A friend of mine told me that he had an old map that had this, "that at that time of the month on the map, there was a square with a Ferris wheel and so on, and in one month it did not appear any more. To do this, and how? Thank you for your attention.

Eu vou assistir agora. Muito obrigado.