Which of the tracks in GT3 really do exist?

[Monkey House]

There must be hundreds of tracks like that around the world, that's just one of many.

And there's no tunnel. Or is that just the GT4 test track?

 

[michaelchan22]

I know its a bit a crappy question but i was just wondering wich of the circuits are real... I know Monaco and Laguna Seca are... but thats where my knowledge stops, can anyone help me?

Greetz..

It's Tokyo R246. If you check the GT3 sites Japan you'll see photos of this track.