In what part of the world do cities commonly have a historic core area contained within the remains of walls and a greenbelt on the periphery?

Question

Quizplus · Accepted Answer

This description commonly applies to cities in Europe. Many European cities, such as Paris, Rome, and Prague, have historic cores that are contained within the remains of walls or other historic features, such as canals or parks. These cores are often surrounded by a greenbelt or park space to preserve open space and the city's natural environment. This urban form is less common in other regions such as Asia, Latin America, and Africa.

In What Part of the World Do Cities Commonly Have