While Housing Day is governed by a centralized algorithm, Houses’ upperclassman lotteries are far from standardized.

but each suite has its private bathroom and the dorms appear almost brand new. The top floor rooms of these and all of Harvard's traditional dormitories suffer space inroads from a slanting roof.

The slideshow shows him in mini-replicas of some of his former cribs — including the Harvard dorm room where he launched Facebook. Gates, in a black hoodie, blue-gray gym shorts, and tennis ...