The oldest standing structure in Ethiopia is located in Yeha; it is a tower built in the Sabaean style, and dated to either the 8th or 7th century BC. This tower is one of the reasons some believe Yeha was the capital city of the D'mt kingdom. The walls of its early temple survive, while other ruins include Grat Beal Gebri, with square pillars.
Yeha is also the location of an Ethiopian Orthodox monastery, founded according to tradition by Abba Aftse, one of the Nine Saints. In his account of Ethiopia , Francisco Alvares mentions visiting this town in 1520, and provides a description of the ancient tower, the monastery, and the local church, which also has been dated to the time of the Axumite Kingdom . This ancient structure houses a museum.
Yeha has also been the site of a number of archeological excavations, beginning in 1952 by the Ethiopian Institute of Archeology.