The document discusses the development of modern architecture in the 20th century. It covers key architects and styles including Le Corbusier and his "Five Points of Architecture" exemplified by Villa Savoye, Mies van der Rohe's German Pavilion made of steel and glass, and Frank Lloyd Wright's Usonian houses and Falling Water that featured cantilevered structures. The document also mentions the Memphis Group in the 1980s that experimented with new materials like plastics and fibreglass to create colorful furniture and lighting designs.