The largest sacral building in Slavonia is the cathedral in Đakovo, dedicated to St. Peter, and described by Pope John XXIII as the most beautiful church between Venice and Tsargrad. Its construction was ordered by Bishop Josip Juraj Strossmayer in 1866 so as to give significance to Đakovo as the ecclesiastical centre of Slavonia. The cathedral is distinguished by red bricks and is equally beautiful on the outside as it is on the inside, where it is decorated by lavish stained glass and an altar.
The 14th century walls, the former Turkish mosque from the 16th century, the Memorial Museum of Bishop J.J. Strossmayer, various cultural events such as the festival of Đakovo Embroidery (Đakovački vezovi) and the Midsummer Night Bonfire (Ivanjski kresovi), as well as the stud farm of the famous Lipizzaner horse make this city unique in Slavonia. Numerous appearances of the Đakovo Lippizaners throughout the world spread the word about the city and its surroundings, and the Lipizzaner Stud Farm in Đakovo is a popular destination for an increasingly large number of horse lovers from both Croatia and abroad.