The idea is to analyse two urban spaces located close together (Chiado and Carmo), in order to evaluate the differences between them, namely: why is it that before two urban spaces of multifunctional characteristics the touristic impact can be so diverse? The answer is almost spontaneous: the heritage in all its forms - historic, cultural, architectonic, literary, artistic… etc. These variables are, undoubtedly, meaningful, but still there is more to it. This is where the terroir concept comes in. Usually applied in vitiviniculture, it defines in a gestalt way the territory, distinguishing the wine from one place to another. The concept itself summarizes something that often cannot be explained: for instance, why do two wines produced in territories with seemingly the same characteristics achieve unequal success? Besides the controllable elements/factors, other interactions arise which surpass the controllable and contribute to the presence of a unique taste. With the territory/urban space the same thing happens, there are elements that interact with each other changing the whole: it’s the terroir