The easiest rooftop I've ever accessed:

To be honest, this photo was not taken from the rooftop, but from the penthouse Gold Members' Lounge.

And this one from a stairwell.

And for good measure, one from the basement of the domestic terminal.

One of my new favorite places to explore. There's a lot to see, but also a lot of people around, so I didn't whip out my camera much. I was amazed by how many off-limits areas are "secured" by nothing more than a do-not-enter / authorized-personnel-only sign. (To be fair, I don't think I ever found myself on the far side of security.) And I found a lot of unlocked or improperly closed doors. Next time I'll dress a little less like a tourist, a little more like an office drone, or perhaps a construction worker.