Nice.
There is a mountain bike downhill race in Lisbon Portugal called Lisboa Downtown that winds down these endless flights of stairs and cobbled streets and goes over man-made ramps and looks absolutely SICK. I first read about this on cyclingnews.com and then I watched some of the video on the event web site and all I can say is wow...
I remember when I worked downtown at Ti Cycles and took Dave's 2nd generation titanium DH bike for a spin down the SAM steps and all over Pioneer Square. Never before in my life had I been able to hit a curb head on and barely notice it. Or haul ass down a flight of stairs and not be worried about getting pitched over the bars. And that was with way old school suspension technology.
What a blast this event must be. Every kid dreams of riding down stairs - who doesn't love that, right?
The proximity of the stone buildings probably add a little to the excitement level of the riders I'm betting.