The Holy Trinity Cathedral is a renowned Ethiopian Orthodox cathedral located in Addis Ababa, the capital city of Ethiopia. It was constructed in 1941 under the orders of Emperor Haile Selassie I to commemorate Ethiopia's liberation from the Italian occupation.

The cathedral is famous for its unique architecture that combines traditional Ethiopian styles with modern European elements. The interior of the cathedral is adorned with beautiful stained-glass windows and mosaics, which depict various biblical stories and Ethiopian Christian saints. It also has a magnificent dome that stands at 52 meters high, making it one of the highest in Africa.

The cathedral also serves as a burial site for several prominent Ethiopian figures, including Emperor Haile Selassie I and his wife, Empress Menen Asfaw. Visitors to the cathedral can explore the tombs of these famous figures, as well as other religious and historical artifacts that are on display.