Reiter, Look at your legend, and learn what symbol represents a codex page. Then visit every city to see if there are more codex symbols on your map. They are normally guarded by three to four guards standing outside a building with an open door.

Maria: Look on this page for the “Secret Assassin Seals Tombs Locations and Guide” section. Those videos and text will tell you exactly where the Assasin Seals are.

Greg: After you buy weapons from the weapons black smith, you should go to your uncle Mario’s Villa. When you enter the front door, go directly to your left and you’ll find the weapons room, where all your purchased/unlocked weapons are displayed. Walk up to each display case to switch weapons, although the game will usually automatically equip the most powerful weapons for you.

thanks

John, check out the tip on this page about the DNA strand that shows how many feathers are missing and then look at the map of that city. Try and remember which ones you got for sure, as the only way to get them all is by walking past each feather locations on that map from top to bottom.