Unlock all 20 pieces of Subject 16's video.

Stun 4 guards at once by throwing sand in their face.

Discover the Assassin's Tomb inside the Basilica di San Marco.

Toss more than 300 florins on the ground.

Find the 8 statuettes in Monteriggioni.

Spend 5000 florins on Courtesans.

Kick a Guard while using the Flying Machine.

Tint your clothes with those colors: Wetland Ebony and Wetland Ivory.

Perform a Leap of Faith from the Top of Florence's Giotto's Campanile.

Complete DNA Sequence 8.

Get all Hidden Blades, Item Pouches and Armor upgrades for Ezio.

Upgrade a building in the Stronghold.

Sprint for 100 meters.