Umm... It depends where you are? I lived in Tokyo, which is one of the biggest cities on Earth, so it has lots of tall buildings and it's really crowded, compared to other places.

[Talking to her overseas friends about different places is one thing, but trying to describe it to some space alien in dumbed down terms is another... What else...]

Oh! But this summer, we took a school vacation to Hawaii. We stayed on an island in the middle of the ocean, and it had palm trees, pretty beaches, gorgeous blue seas...

[She trails off, and there's a mental impression she's bumming herself out even just by talking about it. Hopefully he gets her point that there's a lot of variety, at least.]