The Yeni Valide Mosque () is an 18th-century Ottoman mosque in the Üsküdar district of Istanbul, Turkey. History Construction of the Yeni Valide mosque in Üsküdar began in 1708 and was completed in 1710. It was built for sultan Ahmed III in honour of his mother Emetullah Râbi'a Gülnûş Sultan. The complex consists of an imaret (hospice), arasta, primary school, the tomb of Emetullah Râbi'a Gülnûş Sultan, a courtyard shadirvan (fountain), a muvakkithane (clock tower) and offices. The building is typical of the Classical Ottoman period and of the "Sinan School" of Ottoman religious architecture. It is located in the Üsküdar neighborhood of Istanbul. The main part of the building is square-shaped and covered with a flattened main dome and four half domes. The mosque has two minarets with two balconies each. Calligraphy inside the mosque is the work of Hezarfen Mehmet Efendi. Exterior The mosque is walled off separating itself from the Uskudar district, the entrance being a large gateway. Inside of the walls the mosque's most famous aspect which can be seen from the outside as well, is the tomb that that has a unique bird cage like theme. It also has a courtyard with a notable fountain at its center that the public goes to for water to this day. In the courtyard the mosque has an abundance of different trees from plane to palm, as well as, chestnut. The mosque has an octagonal base with a central dome. Its plan is a variant of that of the Rüstem Pasha Mosque, but variations such as its corner domes give it a more classical character than the Rüstem Pasha Mosque. It is also one of the earliest examples of the 18th-century trend towards domes that were proportionally higher and narrower. The cross vault over the central opening is an innovation first seen in this mosque. Rather than the five domes over the entrance portico – typical for Ottoman mosques – the Yeni Valide employs a cross vault over a central bay and cloister vaults over side bays. The interior decoration consists of stone carvings including muqarnas – intricate stone carvings with floral motifs – and tiles with repetitive floral patterns. Interior Inside of the mosque, there is floral patterns and motifs. At the front there is a mihrab as well as a minbar for the Imam which is needed in mosques so the Imam can lead and direct