We can tell a lot about people's heritage and ethnic background from their facial appearance, but very often it's difficult to pick up on subtle regional differences that can make someone a hard-to-identify nationality.
For example, a woman who hails from Peru can have a slightly altered eye-shape than a woman who is from Brazil, and yet they're closely related, neighboring countries.
While we all have unique faces, markers like nose bridges and eye color can help identify where we were born. Take a peek at this chart that depicts what the average woman looks like in various parts of the world.
All the faces resemble each other, yet each one has its own special beautiful quality that makes the woman stand out.