It is located in Nevşehir, Avanos district, Camikebir District, 807. Street. Architectural Features: The Grand Mosque of Avanos, also known as the "Underground Mosque", is an Ottoman work. It was built in the 18th century. The transverse rectangular structure is descended from the ground level by stairs. The structure, which is covered with smooth cut stone on the outside, is covered with a long vault reinforced with ribs inside. The interior space, which receives light from the window, is completely plastered.The mihrab is a plain niche and the pulpit is a rough lectern built later.