A sweet ride taking us around the park, lesley, here will be at the wheel, how is it going. >> very well. >> what is the story behind this vehicle. it looks like we're hoping in a time machine to mid 1900s. >> a sweet ride, a 1937 white model 706 national parks tour bus they built them for the national park, yellowstone had 98 of them, we have 8 still. it is the favorite vehicle for anyone to tour yellowstone. >> we're burning daylight, let's go. >> let's go. ♪ ♪ >> this is what you can't feel at home, the smell and breeze but. >> and see this look of trees that almost looks like telephone...