It may seem a little glib to say it, but there really are some quite extraordinary sights out there, in the big wide world. Enough, I’m sure, to keep on surprising and delighting the most ardent itinerant soul for a lifetime. One such place, by my reckoning, is the south-west quarter of Bolivia. In an already fascinating country, the lands in this border region, abutting Chile, Peru and Argentina, take things to an almost surreal level.