In Assassin's Creed Valhalla you may find Roman Artifacts, which are one of the collectibles in the game. On this page of our guide you will learn where to find masks and how to get to them. This will make it easier for you to max out the Eurvicscire region.
You will find the mask in Donecaestre.
To get to it, you have to slip into the hole that is in the wall surrounding the city.
Once inside, you will see a nest of snakes and a mask lying on the floor. Get rid of the animals and then take the treasure.
You will find the mask underneath Jorvik.
To get to the mask, you have to destroy the boards that block the entrance to the stairs.
Inside you will see a wall that you have to blow up. After entering the room, look to the left. There will be a statue that holds the mask.