Dominique Perrault, David Chipperfield, OMA, Shigeru Ban, Sou Fujimoto, and Jacques Ferrier are among 75 teams that have been selected to move onto Phase 3 of the highly anticipated "Reinventing Paris" competition. The first of its kind, the competition is calling on architects and designers to envision innovative projects to solve some of Paris' most pressing problems over 23 sites, from abandoned electricity substations to open spaces in the heart of urban areas.