Ambohimanga is a hill and traditional fortified royal settlement (rova) in Madagascar, located approximately 24 kilometers (15 mi) northeast of the capital city of Antananarivo. The hill and the rova that stands on top are considered the most significant symbol of the cultural identity of the Merina people and the most important and best-preserved monument of the precolonial Merina Kingdom. The historic walled village includes residences and burial sites of several key monarchs. The site, one of the twelve sacred hills of Imerina, is associated with strong feelings of national identity and has maintained its spiritual and sacred character both in ritual practice and the popular imagination for at least four hundred years. It remains a place of worship to which pilgrims come from Madagascar and elsewhere.
The site has been politically important since the early 18th century, when King Andriamasinavalona (1675–1710) divided the Kingdom of Imerina into four quadrants and assigned his son Andriantsimitoviaminiandriana to govern the northeastern quadrant, Avaradrano, from its newly designated capital at Ambohimanga. The division of Imerina led to 77 years of civil war, during which time the successive rulers of Avaradrano led military campaigns to expand their territory while undertaking modifications to the defenses at Ambohimanga to better protect it against attacks. The significance of historical events here and the presence of royal tombs have given the hill a sacred character that is further enhanced at Ambohimanga by the burial sites of several Vazimba, the island's earliest inhabitants. The royal compound on the hilltop is surrounded by a complex system of defensive ditches and stone walls and is accessed by 14 gateways, of which many were sealed by stone disc barriers. The gateways and construction of buildings within the compound are arranged according to two overlaid cosmological systems that value the four cardinal points radiating from a unifying center, and attach sacred importance to the northeastern direction. The complex inside the wall is subdivided into three smaller rova. Mahandrihono, the largest compound, was established between 1710 and 1730 by King Andriambelomasina; it remains largely intact and contains the royal tombs, house of King Andrianampoinimerina, summer palace of Queen Ranavalona II, and sites that figured in key royal rituals such as the sacrificial zebu pen, royal bath and main courtyard. Original buildings no longer remain in the compound of Bevato, established before 1710 by Andriamborona, and the Nanjakana compound, built for King Andrianjafy in the late 19th century. The hill and its royal fortified city were added to the list of UNESCO World Heritage Sites in 2001 and represent Madagascar's only cultural site following the destruction by fire in 1995 of its historic sister city, the Rova of Antananarivo, shortly before the latter's intended inscription to the list. Numerous governmental and civil society organizations support the conservation of Ambohimanga by restoring damaged features and preventing further degradation.