"Blue Heart", Yves Klein, 1958
roman water fortress, Schwetzingen palace park, D
Cuvée-bottles, distillery Hennessy, Cognac, F
Memorial for the Murdered Jews of Europe, Berlin, D
Collège du Mont d'Hor, St. Thierry, F
glass dome, shopping mall "Neustädter Tor", Gießen, D
staircase, German Institute for Wool-research, Aachen, D
Auditorio de Tenerife, Santa Cruz, Tenerife, E
elementary school, Oberstetten/Taunus, D
inverter reflected on a solar module, Aachen, D
saline, Guerande, Brittany, F
seating, Utrecht University Library, NL
stair well, Chambord castle, Loire valley, F