Assassin's Creed II Guide
To unlock the “Armor of Altair” set in the Sanctuary inside the Villa Auditore in Monteriggioni, you must collect six seals from the tombs of assassins long past.
There are six such tombs in Assassin's Creed II. The first tomb you will visit is under the Santa Maria Novella during Sequence 4 as part of the main story. The other five tombs are optional, but will appear on the map (denoted by an assassin's symbol icon) when they become available.
The tombs are hidden deep within each location, and require the completion of a number of “climbing puzzles” to uncover.
Collect all six seals and plug them into the indentations on the base of each statue in the Sanctuary to obtain the Armor of Altair, which is the strongest armour in the game and never needs to be repaired.
The “Armor of Altair” Set
In this section you will find a video walkthrough of each tomb, since written instructions would just be hard to follow (and to write).
Il Duomo's Secret
Location: Basilica Santa Maria del Fiore in Florence
Unlocked: After Sequence 4 - Memory 4: Novella's Secret
Treasure: Seal of Iltani
Finding Iltani's Tomb
Torre Grossa's Secret
Location: Torre Grossa in Tuscany/San Gimignano
Unlocked: Sequence 5
Treasure: Seal of Wei Yu
Finding Wei Yu's Tomb
Location: Rocca Di Ravaldino in Romagna/Forli
Unlocked: After Sequence 6 - Memory 2: Romagna Holiday
Treasure: Seal of Qulan Gal
Finding Qulan Gal's Tomb
San Marco's Secret
Location: Basilica Di San Marco in Venice
Unlocked: Sequence 8
Treasure: Seal of Amunet
Entering the basilica
East Trial and finding Amunet's Tomb
Note: The four trials can be completed in any order.
Location: Santa Maria Della Visitazione in Venice
Unlocked: Sequence 9
Treasure: Seal of Leonius
Finding Leonius's Tomb
This memory is not available from the get-go. You first must create a Uplay account and link it to your Xbox Live or PlayStation Network tag. Then, you can redeem points earned by unlocking certain achievements/trophies in the game. You can access Uplay through Assassin's Creed II by pressing Y/Triangle while on the main menu.
The Auditore Family Crypt (“Uplay Exclusive Bonus Map”) costs 40 Uplay points to unlock.
Location: Auditore Family Crypt in Monteriggioni
Unlocked: Sequence 5 (if redeemed via Uplay)
Treasure: 5000 florins
Use Uplay points to purchase the Auditore Family Crypt. Paying Respects “Uplay Exclusive Map”
Finding the burial chamber