Still, the road from a working-class childhood in California to hanging out on the wing of a plane was not a straightforward one. Related content The world's most extreme odysseysOn the surface, Lam seemed to be the perfect image of the ideal American immigrant dream. Related content The family of four who work, travel and live out of backpacksThe Masons don't use in-ear communication devices as some other small-plane pilots do. The making of a bucket listThe plane Lam and Mason flew in. But for Lam, travel isn't just about ticking off boxes of which country you've been to and which attractions you've seen.

Source: CNN May 21, 2019 09:22 UTC