Torre Grossa's Secret: The entrance is on ground level, and it's not hard to find. Look for a vaguely-narrow arched hallway just off the street and look for the entrance on the wall to the right.
Start by wall running to a ledge behind you and shimmy to the right to reach a platform with a lever. The lever opens a gate that leads you into the wine cellar. There are three enemies patrolling the cellar and you can try to avoid them. For more info, watch the whole gameplay.
This is an Assassin's Creed II walkthrough for Tomb 3: Torre Grossa's Secret.
Mahalo's Assassins Creed 2 Walkthroughs are more than enough information for you to play the game yourself, and they teach you everything your need to be prepared for when playing yourself. This video walkthrough focuses on Tomb 3: Torre Grossa's Secret.
Assassin's Creed 2 by Ubisoft is the action-adventure video game playable on PlayStation 3, Xbox 360, Sony PSP, and Nintendo DS video game consoles, along with Microsoft Windows. It is the direct sequel of Assassin's Creed and revolves around Ezio, and is set in Renaissance Italy. Ezio befriends Leonardo da Vinci, who provides experimental weapons and gadgets, and takes on Florence's most powerful families and ventures throughout the canals of Venice, where he learns to become a master assassin. The Assassin's Creed 2 gameplay is a mixture of action, stealth, and acrobatics.