This lecture explains the development of Late Modernism, highlighting its emphasis on abstract geometry, glass curtain walls, advanced structures, and monumental scale. It discusses “Slick Tech” and Corporate Modernism through examples like the John Hancock Tower by I.M. Pei and the Hyatt Regency projects by John Portman, where technology, precision, and sleek glass façades define the aesthetic. It also introduces the Industrial or Machine Aesthetic, where buildings openly express structure and services, leading to High-Tech architecture. Key examples include the Centre Pompidou and Lloyd’s Building by Richard Rogers, showing how exposed technology and large column-free spaces became defining features of late 20th-century architecture.