This is the 985th most frequent Armenian word.
գյուղերի
"Villages'" (plural possessive form of "village").
In this sentence, the word "գյուղերի" (of the villages) is used to denote possession, indicating that the beauty belongs to or is a characteristic of the villages.
Գյուղերի գեղեցկությունը արտացոլում է բնության պարզությունը։
The beauty of the villages reflects the simplicity of nature.
Here, "գյուղերի" (of the villages) expresses a relationship between the villages and the historical sites, signifying that these sites are located in the villages or are associated with them.
Մենք այցելեցինք շատ գյուղերի զարմանահրաշ պատմական վայրերին։
We visited the marvelous historical sites of many villages.
In this case, "գյուղերի" (of the villages) describes the subject of the development, implying that the progress or improvement concerns the villages specifically.