THE ETHIOPIAN TRADITION that the Ark of the Covenant is kept in a special sanctuary in Aksum is explored by Paul Raffaele for The Smithsonian: Keepers of the Lost Ark? Christians in Ethiopia have long claimed to have the ark of the covenant. Our reporter investigated. He got to see the guardian of the Ark, but alas, not the Ark itself.
This is one of a number of less than convincing claims to account for the whereabouts (or at least fate) of the Ark of the Covenant, about which PaleoJudaica has posted many times. Start here and follow the many links back.