The Talhatan-baba Mosque is an outstanding monument of the 12th century. The mosque is located on the cemetery of the medieval village of Talhatan, 40 km southeast of Ancient Merv. It is considered one of the well-studied landmarks. The mosque has a rectangular plan measuring 18x10 meters. It is enclosed by solid walls on three sides but open on the main northeastern facade with three arches. The interior space is divided into three sections: a central square area covered by a dome, which is connected through two open arches to elongated side sections. The mosque did not have columned porticos or even a substantial enclosure; the rectangular building itself formed a complete composition. This is clearly expressed on its facades. The main northeastern facade reveals the internal composition of the mosque: a spacious central arch corresponds to the central section, flanked by two smaller arches on either side. The voussoirs of all arches are almost at the same height. The southwestern facade of the mosque is divided into four arched niches, separated by small lobes, similar to the main facade. The main decorative effect in both the interior and exterior of this building is achieved through the varied use of burnt brick. The question of dating the Talhatan-baba Mosque was resolved by V. A. Zhukovsky, who emphasized the stylistic similarity of the building to the Seljuk structures of Merv, determining its construction period as the 11th to 12th centuries. By suggesting that the mosque was built near the tomb of Abu Bakr Muhammad ibn al-Fadl ibn Ahmed, who lived in Talhatan, engaged in agriculture, and the interpretation of hadiths, and passed away in 1095, V. A. Zhukovsky considered it possible to associate the construction of the building with that date.