Alba Iulia Orthodox Archdiocese

The museum is housed within the complex of the Coronation Cathedral, a structure built between 1921 and 1922 specifically for the coronation of King Ferdinand and Queen Maria. Designed by architect Victor G. Ștefănescu in the Neo-Brâncovenesc national style, the cathedral features an entrance with an open porch supported by columns with capitals and a portal decorated with traditional motifs. Above the portal, mosaic icons of the archangels are visible. The building sits on a rectangular lot and was erected as the first important religious site built in Transylvania following the 1918 Union.

The museum's collection conserves religious art items, rare books, and priestly garbs. A significant portion of the library consists of 15 old Romanian books printed between 1651 and 1808 in typographical centers such as Bălgrad (Alba Iulia), Blaj, Bucharest, Sibiu, and Râmnic. These volumes often contain handwritten notes that provide historical insights into the communities that owned them. Recently, the archdiocese's collection was joined with the old book and icon collection of the National Museum of Unification to form the 'Museikon' collection, further enriching its holdings of icons and printed materials.

The Alba Iulia Orthodox Bishopric Museum Collection holds local importance as a key institution for preserving the religious and cultural history of the Orthodox Church in Transylvania. Its holdings, particularly the rare books from the Upper Mureș Valley and the historical vestments, offer unique evidence of the region's spiritual life from the 17th to the 20th centuries. The museum's location within the Coronation Cathedral complex, a monument of national significance built to commemorate the Union of 1918, further underscores its role in the narrative of Romanian national identity and religious continuity.