Throughout the history of architecture, the circle has been associated with multiple meanings—from the cosmic geometry of ancient temples and the oculus of classical buildings to the rose windows of Gothic cathedrals and the portholes of ships. However, in the 20th century, the circle acquired a new cultural meaning. As aviation, space exploration, and technological innovation transformed the way society imagined the future, circular forms began to evoke machines, spacecraft, capsules, and even new forms of habitation.
