Visit the historical and archaeological sites of Axum (Aksum). The ancient city marks the location of the heart of ancient Ethiopia, when the kingdom of Axum was the most powerful state between the eastern Roman empire and Persia. The archaeological and historical attractions in Axum include: the archaeological museum, the magnificent monolithic steles and obelisks, the tombs of King Kaleb and King Gebre Meskal, the legendary bath of Queen of Sheba and the ruins of her palace. The 16th century cathedral St. Mary of Zion, the holiest church in Ethiopia is said to host the original Ark of the Covenant. The churches and monasteries of Axum are richly endowed with icons and historical crowns of ancient emperors.