New milestone for 20th-century architecture: UNESCO has declared thirteen works by Finnish architect Alvar Aalto (1898-1976) World Heritage. Among the recognized buildings are some of Aalto's most famous works, such as the Paimio Sanatorium, Villa Mairea, the Experimental House of Muuratsalo, and two works the architect made for himself: the dwelling and a studio. "Rooted in Finnish building traditions and yet open to global modernist ideas, the works express a human-centered, site-specific, and empathetic vision that distinguishes Finland's contribution to modern architecture," states the UNESCO press release, which highlights the architect's collaboration with his first wife, Aino Marsio-Aalto, and with his second, Elissa Aalto, as well as with the workers in his studio.