This is East Parking at the San Bernardino International Airport. The airport that planes land at, usually for the last time. Unical MRO has a complex out there, and they are a teardown facility, so the apron is covered with planes in various stages of disassembly.
Anyway, the only use the Terminal gets (just to the right of East Parking) is when somebody comes out and films part of a movie or TV show in it. So it's pretty nice pavement, and almost always empty.
As of today, I've ridden the 0.5 mile segment around East Parking... 457 times. That doesn't include other laps (like a figure-8 around East and West Parking together.)
I did 80 laps around East Parking in one stint a few years ago. Just because. Still beats a trainer.