This is the 7862nd most frequent Russian word.
канавинском
"Канавинском" is the prepositional case form of "Канавинский," which relates to the Kanavinsky District in Nizhny Novgorod, Russia.
Here, 'Канавинском' is the locative case, modifying 'районе' to indicate location in the Kanavinsky district.
Мы гуляли в Канавинском районе города.
We were walking in the Kanavinsky district of the city.
In this sentence, 'Канавинском' also uses the locative form to specify the location of the stores within the Kanavinsky district.
Я часто посещаю магазины в Канавинском районе.
I often visit stores in the Kanavinsky district.
This illustrates the use of 'Канавинском' to set the contextual location of the historical buildings.