There are plenty of things to do in Marvel's Spider-Man 2's expanded New York, from stopping crime to running tests for Harry. Alongside the game's various activities is a variety of collectibles to find, among which are Marko's Memories. These collectibles contain the memories of Flint Marko, the Sandman, who would do anything to protect and care for his daughter, including committing violent acts of aggression against people who try to stop him.
Source：https://www.cbr.com/marvels-spider-man-2-every-markos-memories-location/
