For centuries, architectural theory and discourse have been grounded in diurnal paradigms. Vitruvius made scant references to the night in De Architectura, and a similar absence can be identified in Renaissance treatises by Alberti and Palladio. Since the invention of electric lighting in the 19th century, the urban environment has witnessed an expansion and intensification of human activity. Nowadays, we sleep one hour less than a hundred years ago, with people working and socializing well into the night. Time has become elastic: from casinos to nightclubs, movie theaters, and corner shops, cultural and retail spaces are inseparable from the nocturnal experience. On one hand, a Nocturnal History of Architecture reveals neglected areas of scholarship; on the other, it may offer a laboratory for the development of alternative forms of architectural historiography. Building on the work of scholars such as Dietrich Neumann and Sandy Isenstadt, papers in this session explore the broad topic of night and architecture across a wide range of historical periods. * This session builds upon and completes the symposium "Nocturnal History of Architecture", which was held at HEAD – Genève in December 2021. Session co-chairs: Javier F. Contreras, Roberto Zancan Contributions by: Chase Galis, Maria Shevelkina, Amy Chazkel, and Cat Rossi