are they any?
On the Halloween one there is a coffin by blue where Urf attacks Ww besides that i cant think of any off the top of my head
If you go to the bottom right corner of the map, you can see some kind of village or something, and if you zoom in you can see cancelled champions in coffins.
Also next to the shopkeeper, there is some sort of turret/statue there too.
If you pick Cassiopea, all the snakes that randomly wander around the jungle/lane etc. vanish.
If you hoover over Baron or Dragon, it will say "Warning: Epic monster" and a description about them.
Those are some that I can remember off the top of my head.
If you successfully destroy enemy nexus without breaking their towers it says "Who Revived Xin?" Instead of victory/defeat
The is a tree stump near the wolves on the purple side of Summoner's Rift. This stump has the marking of a Quintessence on it (Like when you don't have a quint on your page.).
mayan calendar underneath the wolf camps.
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