Bruce Springsteen par Jim Marchese.
Korkeasaari Zoo observatory - Helsinki, Finland in 2000-2002
Winning design by Ville Hara in a competition held for architectural students of Helsinki University of Technology.
The load bearing structure consists of 72 long battens, with a section of 60mmx60mm, that are bent and twisted on the site from seven pre-bent types. Over 600 bolted joints hold the shell structure together.