Answer 1

You can't you can only go to Black City in Black,just like you can only go to White Forest in White.

Comments

thanks , i never knew that

---

Welcome:)

---

you should give this question best asnwer.

Answer 2

You can't have Black City in pokemon white, but if you connect with someone who has Pokemon black via Entralink, you can visit Black City and bring people to White Forest.