The Al-Qarawiyyin Mosque, also known as the University of Al-Qarawiyyin, is located in the historic city of Fez, Morocco. It is considered one of the oldest continuously operating universities in the world, having been founded in 859 CE. As a historic and significant institution, visitors to the Al-Qarawiyyin Mosque can expect to see a variety of architectural and artistic features, including intricate tile work, plaster carvings, and ornate calligraphy. The mosque also includes a library that is open to visitors, which reportedly contains some of the oldest surviving Qur'anic texts in the world. In addition to the mosque and library, visitors can also explore the broader historic district of Fez, which includes a number of other significant landmarks and cultural attractions, such as the Bou Inania Madrasa and the Dar Batha Museum. Overall, visitors to the Al-Qarawiyyin Mosque are likely to encounter a rich and diverse array of Islamic art, architecture, and history.