-Comparative Literature: usually requires at least two foreign languages at the undergraduate level and sometimes more if pursued for graduate work.
-Philosophy: not always required at the undergraduate level, but graduate study often requires at least one ancient language and one modern language.
-History: usually requires at least one foreign language if you don’t get stuck on your own country’s history.
-Asian Studies: if you don’t know Japanese, Chinese, Korean, and Vietnamese, then you’ve still got something to learn.
-International Relations: often requires two modern foreign languages.
-Classics: requires Greek and Latin.
-Middle Eastern Studies: Arabic and Persian.
This is just a sampling, and there are plenty of Language and Literature programs (e.g., for French, Spanish, German, Italian, and so forth).