The early years of the 20th century were a time of momentous change both in the fields of art and design. Just as Picasso forever altered the history of painting through the creation of Cubism, so too the field of design saw inexorable changes as leading architects of the age began to synthesize ideas of structure and decoration. As such, furniture emerged as an integral element in the conception of a building and prominent architects including Frank Lloyd Wright and Gerrit Thomas Rietveld devoted themselves to designing tables, chairs and more. From the Collection of Daniel Wolf, a remarkable selection of such architect-designed works are offered in Sotheby’s Important Design sale (12 December, New York). Wolf remarked, "I found this convergence of art, architecture and design to be intoxicating. This transformation opens the doors for architects to experiment with furniture as an art form, and it is this notion that sparked me to collect furniture by architects throughout the 20th century." To see these architect-designed objects, click ahead.