Ortakoy Mosque, also known as the Ortakoy Mosque of the Bosphorus, is a beautiful and historic mosque located in Istanbul, Turkey. It is situated on the shores of the Bosphorus, near the Ortakoy district, and is one of the most picturesque and recognizable landmarks of Istanbul.

The mosque was first constructed in the mid-18th century, during the Ottoman era, and was later renovated and expanded in the 19th century. Its architectural style is a mixture of Baroque, Rococo, and Neoclassical elements, with an emphasis on symmetry and balance.

One of the most striking features of the Ortakoy Mosque is its location on the Bosphorus. It has a large courtyard in front of it, which offers a stunning view of the Bosphorus Bridge and the European and Asian sides of the city. The mosque's large central dome is flanked by two smaller domes and four minarets, which rise up into the sky and create a sense of grandeur and majesty.

Inside, the mosque is decorated with beautiful tiles, calligraphy, and ornate chandeliers. Its main prayer hall can accommodate up to 1,000 worshippers, and it is open to visitors of all faiths.

The Ortakoy Mosque is a popular destination for tourists and locals alike, and is especially busy during Ramadan and other Islamic holidays. It is also a popular spot for photographers, who come to capture the mosque's stunning architecture and the beauty of the Bosphorus.