Complete the indicated task to unlock the corresponding map for purchase from an Art Merchant.

Centra Flags: Complete the game or collect 25 Borgia flags.
Antigo Flags: Complete the game or collect 25 Borgia flags.
Campagna Flags: Complete the game or collect 25 Borgia flags.
Vaticano Flags: Complete the game or collect 25 Borgia flags.
Feathers: Complete the game or collect 25 Borgia flags.