Ideas about beauty and comfort change constantly, all new generations of architects and town-planners go out on the stage, economists think of new conceptions, and environmentalists, are new threats, and every stage of transient intellectual fashion becomes part of history of city - ideas about municipal development do not go away to the past together with the time, but get physical embodiment in a municipal landscape, accumulate and influence friend on friend - and on us, city-dwellers. Basic details of intellectual designer from that a modern city is collected, professor of the Pennsylvanian university Витольд Рыбчинский describes.