Tricarico Cathedral is a Roman Catholic cathedral church in the city of Tricarico. Robert Guiscard erected the present building in the Romanesque style in the 11th century using a gift from his nephew Robert, Count of Montescaglioso. Louis I, Duke of Anjou was crowned there in 1383. The church has been remodelled and enlarged several times over the centuries, by Bishops Pier Luigi Carafa senior in 1638, Pier Luigi Carafa junior after the plague of 1657 and Antonio del Plato between 1774 and 1777. The work carried out by the latter bishop gave the cathedral its present appearance.
Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.