Flying
God I love flying.
Not that commercial commuter jet bullshit that accounts for the vast majority of it these days. But real flying in a plane with propellers like the gods intended. Even a over grown puddle jumper with delusions of grandeur like this dash8. Things which go low and slow enough that you a flying over the ground not "traveling through the stratosphere". I thrill to the sound of a prop plane crawling through the air above me, I could (and have) spent lazy afternoons hanging out by a GA field just watching the coming and goings.
Looking out through the window and the ground below me where I can see cars and maintain contact with the human scale of it all is so much more meaningful that looking down on clouds and the occasional mountains.