This is the toughest thing to do in the game (in my opinion).
There are many maps available to help you, but the trouble I have is that running through the game I was able to find about 60 of them, but now I have no idea which 40 I missed, and I do not think there is a way to do so. You're going to have to run through each map area, and using some guide online (just Google it, there are plenty of guides out there) check each point; even if you already got that feather (unless you remember where every feather you got was, which is unlikely)... Hopefully you and aren't missing 1 or 2 when you're done or else you'll have to do the whole thing over.
I suggest trying to use eagle vision when you get close to the area it says; the feathers will glow white.
one is outside the palazzo della singhoria
You walk in to them
collect them in all the cities.........ps----easy
After 50 feathers you receive a special weapon.
A huge hammer
you can get the aduitore cape after you find all 100 feathers and talk to ezio's mom.
No, but you can buy a map of all the feathers and once there arent any more feathers on the map you found them all in that city
For Assassins Creed 1 No, for Assassins Creed 2 yes.
assassins creed 2 has definatly a larger map but the kill streaks are much better on assassins creed brotherhood but the story line is alot better in assassins creed 2 hope you have fun with assassins creed 2 or brotherhood ;)
Google "Cheats for Assassins Creed 2"
i dont know if it is one but i have all the truth files and you can maybe go to assassins creed 2 web battle and there it is maps over cityes (i dont know how you write that word) but there it is with truth file locations and feathers locations.
not at all it stinks
Leonardo DaVinci. From Assassins Creed 2.
Assassins Creed II