On a miserably hot day in early June, we took out-of-town guests to see the Caravaggio exhibit at the Quirinale. We purchased tickets--reservations for a particular day and time--on-line, thereby avoiding an uncomfortable, interminable, and possibly fruitless wait outside in the scorching sun, where vendors were selling small, colorful, shade umbrellas to the ticketless. A tent protected the first 20 or 30, but the line was hundreds of feet long, and Godot wasn't showing up anytime soon. Bill
