This is actually pretty old now (dates back to December 2010), but here's a photo of myself that was taken during a recording gig out at Lake Yamanaka. It was really amazing... forests as far as the eye can see, the freshest air I've ever breathed, and an incredible view of Mt. Fuji.
Shit, you're alive. Still carrying your iMac around?
No more Jack Sparrow looking hair and stuff, so clean and sharp.
The air around mount fuji (pre-2011) was pretty fresh. But the freshest I've breathed was at Upper/Lower Kananaskis Alberta and Lake Louise Alberta. That being said, the air in Shibuya was quite fresh in the "back area". The front of the hotel and everywhere was super developed. Yet in the back were baseball diamonds and tree growth. It wasn't super fresh, but it at least smelled like a small town which was a huge contrast to the front.