Morocco is one of the most prominent countries on UNESCO's World Heritage List, thanks to a long journey of international recognition that began with the inscription of its first site in 1981, the ancient city of Fez. This journey continued, culminating in the registration of eight additional sites. DR ‹ › On April 18 each year, the world marks World Heritage Day, highlighting the importance of protecting cultural and human heritage. Morocco ranks among the Arab countries with the highest number of sites inscribed on the UNESCO World Heritage List. The Kingdom counts nine sites on the list, tied with Tunisia, while Saudi Arabia follows with eight. Jordan, Egypt, and Algeria each have seven sites, followed by Iraq, Syria, Palestine, and Lebanon with six each. Inclusion on UNESCO's list recognizes a site's «outstanding universal value» and entails an international commitment to preserve it for future generations. UNESCO applies strict criteria combining cultural and natural dimensions. Sites must reflect exceptional human achievement, whether as masterpieces of creativity, testimonies to interactions between civilizations, or examples of architecture, traditions, and ways of life tied to key stages in human history. They may also be associated with ideas or beliefs of universal significance. Natural sites, meanwhile, are recognized for their beauty or scientific importance, such as illustrating stages in the Earth's evolution or hosting ecosystems vital to biodiversity. Morocco's nine listed sites reflect its rich cultural diversity and the legacy of successive civilizations, from Amazigh and Arab to Andalusian, African, and European influences. Fez Medina (1981) Founded in the 9th century, Fez is home to the world's oldest university. It reached its peak in the 13th and 14th centuries under the Marinids, when it served as the capital. Its urban fabric, madrasas, mosques, palaces, and fountains, dates largely from that period. Despite the capital's move to Rabat in 1912, Fez remains Morocco's cultural and spiritual heart. Marrakesh Medina (1985) Founded by the Almoravids in the 11th century, Marrakesh became a major political and cultural center in the western Islamic world. Its landmarks include the Koutoubia Mosque, city walls, gates, and gardens, alongside later additions such as the Bahia Palace, Saadian Tombs, and Ben Youssef Madrasa. Jemaa el-Fnaa Square is also listed as intangible cultural heritage. Ait Benhaddou (1987) This ksar, located near Ouarzazate, is a striking example of traditional southern Moroccan architecture, with earthen buildings enclosed by defensive walls and towers. Historic City of Meknes (1996) Originally founded as a military settlement in the 11th century, Meknes flourished under Sultan Moulay Ismail in the 17th century, who transformed it into an imperial city blending Islamic and European architectural influences. Volubilis (1997) Dating back to the 3rd century BC, Volubilis was a key Roman outpost adorned with monumental architecture. It later became associated with Idris I, founder of the Idrisid dynasty. Tetouan Medina (1997) Rebuilt by Andalusian refugees after the Reconquista, Tetouan reflects strong Andalusian influence in its architecture and urban design, making it one of Morocco's most well-preserved medinas. Essaouira (2001) Formerly Mogador, Essaouira is an 18th-century fortified port city built according to European military design principles, serving as a major trade link between Morocco, sub-Saharan Africa, and Europe. Mazagan – El Jadida (2004) The Portuguese fortifications of Mazagan, now part of the city of El Jadida, are located about 90 km southwest of Casablanca. Established in the early 16th century as a fortified colony on the Atlantic coast, the site was later reclaimed by Morocco in 1769. The fortifications, with their prominent bastions and defensive walls, are a remarkable example of Renaissance military architecture. Several Portuguese structures remain visible today, including the famous cistern and the Church of the Assumption, built in the Manueline (late Gothic) style. Mazagan is considered one of the earliest settlements established by Portuguese explorers in West Africa on their route to India, and stands as a unique testament to the blending of European and Moroccan influences, evident in its architecture, urban planning, and construction techniques. Rabat (2012) This listing uniquely combines the historic city, home to landmarks such as Hassan Tower and the Kasbah of the Udayas, with the modern capital designed in the early 20th century, creating a rare balance between tradition and modernity.