This is the 9465th most frequent Russian word.
узбекистане
"Узбекистане" means "in Uzbekistan" (prepositional case of Uzbekistan).
In this sentence, 'узбекистане' is used as the prepositional case form of 'Узбекистан', indicating location.
Я был в Узбекистане прошлым летом.
I was in Uzbekistan last summer.
Here, 'узбекистане' appears as the prepositional case, showing the place where the beautiful architecture exists.
В Узбекистане много красивой архитектуры.
There is a lot of beautiful architecture in Uzbekistan.
In this example, 'узбекистане' is again prepositional, connected to the phrase 'о культуре' to describe the subject's scope.