The "Plug-in City" was a visionary concept designed by architect Peter Cook in 1969. It is an architectural proposal that focuses on flexibility and adaptability, with a focus on modularity and the ability to "plug in" various components or services into a pre-existing infrastructure.
The concept imagined a futuristic city where components could be added or removed, much like plugging in electrical devices. This radical idea was a part of the Archigram group’s exploration of modern, flexible urban designs, which emphasized mobility and adaptability.
Cedric Price and Yona Freidmann are also notable visionary architects, but the "Plug-in City" specifically belongs to Peter Cook.