In the Brasilia airport, ready for the last leg of the trip in Rio. Brasilia was a modernist fantasyland, a time capsule of optimistic, future-making ambition and bold patriotism. Each parabolic curve, each concrete flourish, each surprising use of glass whisks you to a moment in time when the line between today and tomorrow blurred. The fact that it is a government center, and the vast majority of people still dress conservatively in everyday life - like Don Draper with Portuguese accent - only magnifies the effect. A full report on Brasilia will follow.