It's late at night/early in the morning and you're trying to study but that inhuman sound your stomach is making is distracting you from your last minute cram session. Where do you go to get some late night grub? We at Flyby have some suggestions.

7. CVS (1426 Massachusetts Avenue)

They're open 24/7 and have an almost endless array of junk food. You do the math.

6. Petsi Pies Cafe (31 Putnam Avenue)

Monday-Thursday, 7 a.m.-8 p.m.

Friday, 7 a.m.-6 p.m.

Saturday and Sunday, 9 a.m.-6 p.m.

(N.B.: Beware special holiday hours starting on Monday 12/17! The store will close at 6 p.m. most nights.)

Ok, so technically this place isn't open late, but if you pull an all-nighter the 7 a.m. opening time means it's still night for you. Petsi's has a lot of delicious pies, such as the bourbon chocolate pecan pie and apple pear cranberry, that you can buy by the slice or whole. They also have iced coffee. You'll need it.

5. The Kong (1238 Massachusetts Avenue)

Monday-Wednesday, Sunday, 11:30 a.m.-2 a.m.

Thursday, 11:30 a.m.-2:30 a.m.

Friday-Saturday, 11:30 a.m.-3 a.m.

One of two classic late-night Harvard eateries on this list, The Kong is open really late, has a sprawling menu, and a high food to dollar ratio.

4. Charlie's Kitchen (10 Eliot Street)