"Glass can be more than just the transparent shell."
  • Joseph Pschorr House
  • Siemens Headquarter
  • maxCologne - cubic entrance
  • Hans Otto Theatre
  • Open Workshop
  • Baumhaus Hotel Vieux Manior
  • Alfred Brehm House
  • Nordsilo
  • Großes Tropenhaus
  • Musée Mineralique