Polymath Trophy in Prototype
Collect all Hint Collectibles scattered across New York City.
How to unlock PolymathThere are 50 pink/purple orbs that make up the Landmark collectibles in this game. You must track them all down to unlock this trophy. ThisIsWar has compiled a set of videos that break the game map up into regions and cover them one by one to make it easy to track them all down: WoI, Events, Landmarks, and Hints Mini-Guide
You can track your progress under the Statistics -> General page on the pause menu.