Ah, the Annapurna Circuit: pretty enough for Nag Champa-burning mystics and crusty backpackers alike to call the most beautiful trek in the world. Part of its enduring appeal? Very, very few roads. But that’s changing, as this video shows. High above the Marsyangdi river valley, these intrepid two-wheelers cover in a few hours what a Vibram-soled hiker would take a week to bag. Progress?