Al-Attar Mosque - Credit: Wikimedia Commons
The Al-Attar Mosque () is a congregational mosque (jāmiʿ) in the Old City of Tripoli, Lebanon built around 1350 A.D during the Mamluk Era. The mosque is widely noted for its unusual layout, its interior bears no resemblance to any other known mosque types, and for its square-shaped minaret, an integral part of the skyline of Tripoli and the tallest Mamluk Era minaret in the city. Today it is the site of ongoing archaeological excavations, while still functioning as an active place of worship for the Sunni Muslim population and as a tourist destination. Read more on Wikipedia
Source: en.wikipedia.org