for my first level design class, we got an assignment to make a level out of 180 basic cubes. my immediate reaction was the desire to recreate one of my favorite levels from Assassin's Creed II: the dream segment where you do through the memories of Altair and get to revisit Acre from AC1.
it's pretty basic, as the whole level took about 30 minutes to make, but a basic idea is here and was the purpose of the assignment, and I love it!