In my tutorials I cover all of Illustrator's functions. And of course I try to cover what people need to draw. I would guess that every illustrator sooner or later will need to draw houses, landscapes or cityscapes. I do them in different looks.
80s poster style with lots of neon. I love London.
A print of this artwork on acrylic glass
Simplified landmarks - vector graphic done in InDesign
The Golden Gate Bridge
These kind of landscapes have been en vogue for web sites some years ago.
Experimenting with Illustrator's perspective function when it was new.