Perform the following actions to unlock these rewards in Ezio's hideout.
Courtesan's Guild Crest - Rewarded for having all Level 2 Guilds
Thieves Guild Crest - Rewarded for having all Level 2 Guilds
Mercenaries Guild Crest - Rewarded for having all Level 2 Guilds
Maria's Dagger - Rewarded for having all Level 3 Guilds
La Volpe's Bite - Rewarded for having all Level 3 Guilds
Bartolomeo's Axe - Rewarded for having all Level 3 Guilds
Assassin's Guild Crest - Rewarded for completing all Guild Challenges
Sword of Altair - Rewarded for completing all Guild Challenges