 Their projects encompass a broad spectrum, including new buildings like the "Labels 2" fashion center in Berlin, interior design, planning tasks like the master plans for the public spaces of the Praille-Acacias-Vernets site in Geneva and La Défense, near Paris, and the development plan for Unterfeld in Zug, Switzerland, as well as objects in the public realm like "Baby Dragon" in China or the "Espinazo del Diablo" viewing platform on the "Ruta del Peregrino" in the Mexican state of Jalisco.HHF Architects intentionally seek close and substantive collaboration with artists and other architects.It is within this context that group projects receiving worldwide attention have emerged, such as the Mexican pilgrimage route "Ruta del Peregrino" and the fruitful collaboration with the Chinese conceptual artist Ai Weiwei, which has been ongoing since 2005.