I will surely come to regret pointing this out, but it's "wherefore art thou, Romeo". Though it's archaic, "art" is a simple present tense conjugation of "to be".
Because Shakespeare's Juliet never said "Where are you", and said somehting completly differnet ("Why are you Romeo") what case is it? I think I am disqualified from answering because I was wrong once already.
Another question(s) (second, third) is which case is:
"Where are you"
"Why are you"
The Mohonk Mountain House and the Mohonk Preserve have done a great job protecting the environment thus far, but ... it's all down hill from here http://youtu.be/9AU8fMo8v4k.