In brief
The Renaissance idea became streets, fortifications and buildings.
Useful to know
Zamość was founded in the 16th century by Jan Zamojski after a project by Bernardo Morando. UNESCO connects it with Italian theories of the ideal city and combining them with Central European traditions. The plan and fortifications are preserved. [1]
Here, "ideal" is a historical urban idea, not an assessment that every day has been seamless. Explore the connection between the squares, streets and the city boundary. When compared to a phased-out center, you will see why the original common design is an essential part of the heritage.
Sources
For further detail and to check the information: