Cathedral Basilica of St. Mary, Oradea

The Diocese of Oradea (Latin: Dioecesis Magnovaradinensis Latinorum, Hungarian: Nagyváradi Római Katolikus Egyházmegye, Romanian: Dieceza Romano-Catolică de Oradea Mare) is a Latin Church ecclesiastical territory of the Catholic Church in Romania, named after its episcopal see in the city of Oradea.

The Baroque Palace of Oradea (Romanian: Palatul Baroc din Oradea), also known as the Roman Catholic Episcopal Palace of Oradea (Romanian: Palatul Episcopiei Romano-Catolice din Oradea), of the city of Oradea in Bihor County, Romania, is a building that dates to the Baroque times.

Mihai Eminescu National College (Romanian: Colegiul Național "Mihai Eminescu" Oradea) is a high school located at 18 Episcop Roman Ciorogariu Street, Oradea, Bihor County, Romania. It is named after Mihai Eminescu, the national poet, and is one of the most prestigious schools in Bihor County.

Oradea (UK: , US: , Romanian: [oˈrade̯a]; German: Großwardein [ˌɡʁoːsvaʁˈdaɪn]; Hungarian: Nagyvárad [ˈnɒɟvaːrɒd]) is a city in Romania, located in Crișana. The seat of Bihor County, Oradea is one of the most important economic, social and cultural centers in the western part of Romania. The city is located in the north-west of the country, nestled between hills on the Crișana plain, on the banks of the river Crișul Repede, that divides the city into almost equal halves. Located about 10 km (6.2 mi) from Borș, one of the most important crossing points on Romania's border with Hungary, Oradea ranks ninth among most populated Romanian cities (as of 2021 census). It covers an area of 11,556 hectares (28,560 acres), in an area of contact between the extensions of the Apuseni Mountains and the Crișana-Banat extended plain. Oradea enjoys a high standard of living and ranks among the most livable cities in the country. The city is also a strong industrial center in the region, hosting some of Romania's largest companies. Besides its status as an economic hub, Oradea boasts a rich Art Nouveau architectural heritage and is a member of the Réseau Art Nouveau Network and the Art Nouveau European Route.

Bihor County (Romanian pronunciation: [biˈhor] , Hungarian: Bihar megye) is a county (județ) in western Romania. With a total area of 7,544 km2 (2,913 sq mi), Bihor is Romania's 6th largest county geographically and the main county in the historical region of Crișana. Its capital city is Oradea.

Holy Trinity Church (Romanian: Biserica Sfânta Treime) is a Romanian Orthodox church located at 13 Parcul Traian Street, Oradea, Romania. It is dedicated to the Holy Trinity. The church was begun in 1692, after the loss of Ottoman control over the city during the Great Turkish War, in favor of the Habsburg monarchy. Originally a Roman Catholic church, it was initiated by Bishop Ágoston Benkovich and dedicated to Saint Bridget of Sweden. It was the first Catholic church outside the Oradea Citadel, located in the Olosig district. It burned in 1703 and was rebuilt in 1722.Ship-shaped, it has a pentagonal altar; the exterior features a small wooden tower. Initially Baroque in style, as seen in the pediment decorations, it is now Eclectic. The interior frescoes date to 1982–1985. After its Roman Catholic period, the church passed to the Ruthenian Greek Catholic community, who dedicated it to the Holy Spirit. Administered by the Oradea Mare Eparchy from 1786, it was controlled by the Hajdúdorog Eparchy between 1912 and 1919. The church was Greek-Catholic until 1948, when the new communist regime outlawed the denomination.The church is listed as a historic monument by Romania's Ministry of Culture and Religious Affairs.

Emanuil Gojdu National College (Romanian: Colegiul Național Emanuil Gojdu) is a high school located at 3-5 Spiru Haret Street in Oradea, Romania. It is named after Emanoil Gojdu. The College, which was founded on 15 June 1919, has a long history in teaching, being focused on science subjects. "Țara visurilor noastre" is its official magazine. The school building, with a construction date of 1895–1896, was designed by architect Ferenc Knapp; it is listed as a historic monument by Romania's Ministry of Culture and Religious Affairs.

Partium Christian University (Hungarian: Partiumi Keresztény Egyetem; Romanian: Universitatea Creștină Partium) was founded in 1995 in Oradea, the capital and university city of the historical region of Partium, in Transylvania. Its location is a border city with about 185,000 inhabitants close to Hungary, in western Romania.

Varat Eyalet (also known as Pashaluk of Varat or Province of Varat; Ottoman Turkish: ایالت وارد; Eyālet-i Vārad) was an administrative territorial entity of the Ottoman Empire formed in 1660. Varat Eyalet bordered Ottoman Budin Eyalet in the west, Temeşvar Eyalet in the southwest, Egir Eyalet in the northwest, vassal Ottoman Principality of Transylvania in the southeast, and Habsburg Royal Hungary in the north.

The Moon Church (Romanian: Biserica cu Lună) is a Romanian Orthodox church located at 10 Piața Unirii, Oradea, Romania. It is dedicated to the Dormition of the Mother of God.

The St. Nicholas Cathedral (Romanian: Catedrala Sfântul Nicolae) also called Greek-Catholic Cathedral of St. Nicholas It is a Catholic church that serves as the cathedral of the Eparchy of Oradea Mare (Eparchia Magnovaradinensis Romenorum). It is located in the city of Oradea in the European country of Romania.

Bihar was an administrative county (comitatus) of the Kingdom of Hungary and a county of the Eastern Hungarian Kingdom and Principality of Transylvania (since the 16th century, when it was under the rule of the Princes of Transylvania). Most of its territory is now part of Romania, while a smaller western part belongs to Hungary. The capital of the county was Nagyvárad (now Oradea in Romania). Albrecht Dürer's father was from this county.