Okay, so maybe this stems from my love of proper grammar, but the visible part of a woman's genitalia is NOT a vagina. The vagina is the inner canal where we get penetrated during intercourse, give birth through, and place a tampon. The urethra is a "tube" from the bladder that terminates near the vaginal opening on the anterior/superior part of the vaginal opening (towards the front of your body). You do not urinate through your vagina, although because your urethral opening is still on the INNER part of your vulva (inside the labia), it may "feel" like that. The outside, visible part of the female genitalia is called a vulva. There are two sets of labia (lips), inner and outer ones. At the top of the labia is the clitoris, under the clitoral hood. The mons, or mons pubis, is the fleshy part above the vulva that is usually covered in hair and it protects the pubic bone.
It is called a vulva, mons, pudenda. NOT vagina. Unless you are talking about the inside. Thank you for participating in this short science lesson.
ETA: fixed to show correct placement of the urethra. I am used to catheterizing dogs, and their urethras terminate in the vagina. Thanks to those who caught the error!