I think this is quite intresting.

http://www.stern.de/panorama/spencer-tunick-nackt-parade-vor-der-oper-von-sydney-1547326.html

(Spencer Tunick has done this in different cities.)

Thanks for sharing the link.
It remembers me the new trend about flash mob, last Saturday in Rome, the latest about book.I dunno if some phtographer have had the occasion to catch one of them around teh world.

Der nackte Wahnsinn.