*This achievement is missable*

After completing the final Memory sequence, you cannot access the present. Be sure that you exit the Animus at least once to find an artifact.

There are a total of 5 artifacts to be found in present-day Monteriggioni, but you only have to gain one for the achievement. Collecting the rest will offer no extra benefits. Pick any of the 5, or just follow the one chosen for the video.

Claudias Record Book- After exiting the Sanctuary, turn directly around, and its in the room off to the right.
Marias Feather Chest- After exiting the Sanctuary, head up to the top of the villa, and its in a hole in the roof.
Marios sword- Head south of the fighting ring, and head right. The sword is beneath a tree in a rock.
Ezios Belt- Upon picking up the sword, head straight down the alley and turn left. Head up the wall at the end of the alley, and the belt is in the corner.
Medici Cape- Head East along the main wall until you see the Church. Head inside, and the cape is inside.