But what I find myself drawn to in these races is the remarkable architecture displayed at the road courses around the world. Several in Asia are especially striking in their grandstand and concourse designs.
The German architectural firm of Hermann Tilke has designed many of these tracks. This is one in Sepang:

And this one in Shanghai:

There is something surreal about these modern structures rising up out of open spaces, and some of the grandstands are just plain cool.
You can see more photos and designs at the firm's website.