Hassan Tower in Rabat, Morocco, is a 12th-century minaret and the most prominent remnant of an ambitious mosque project commissioned by Almohad ruler Abu Yusuf Yaqub al-Mansur. Construction began in 1195 with the intention of creating the largest mosque in the Muslim world, but it was left incomplete after the sultan’s death in 1199 and further damaged by the Lisbon earthquake of 1755. The tower stands at 44 meters, about half of its intended height, and is architecturally linked to the Koutoubia Mosque in Marrakech and the Giralda in Seville. Tourists visiting Hassan Tower can explore the surrounding esplanade, which features the ruins of the unfinished mosque’s columns, offering insight into medieval Islamic architecture. The site is adjacent to the Mausoleum of Mohammed V, a modern landmark housing the tombs of King Mohammed V and his sons, making it a combined historical and cultural visit.