The ruins of a Dacian fortress on a wooded hill above the Sebeș valley: limestone walls in the murus dacicus technique and the base of a tower house, the only Dacian UNESCO site in Alba County.
A foundation of Prince Gheorghe Ștefan from 1655–1657: a dressed-stone church inside a walled enclosure with towers, near Onești; today a parish church.
A 19th-century Lutheran church with an 1813 organ, enclosed by an oval 15th-century wall, on a hill in the middle of a quiet Saxon village a few kilometres off the DN13.
A 13th-century Romanesque hall church with an eight-storey keep above the old choir, two rings of walls and fragments of medieval wall paintings, a few kilometres from Rupea.
A 13th-century Romanesque church with a richly carved portal, enclosed by a double ring of walls in the Hârtibaciu valley, with the Făgăraș Mountains behind.
The largest surviving piece of Timișoara's bastioned fortress, built by the Austrians in the 1730s and restored with EU funds, now home to the National Museum of Banat.
The northernmost bastion of Roman Dacia: the fort with its reconstructed gates, the paved imperial road, the civil town and the amphitheatre, on the hills at Moigrad in Sălaj.
The Daco-Roman and Roman-Byzantine fortress in Corabia, with its excavated walls and towers, a 6th-century basilica, the "secret well" and the northern pier of Constantine the Great's bridge over the Danube.
A Saxon church on a hill in Apold, surrounded by walls and defensive towers that survive almost complete, with Gothic frescoes on the triumphal arch and contemporary art exhibition spaces.
A Gothic Saxon church from 1421, enclosed by walls, four defensive towers and a second ring of fortifications, in the middle of a village by the Olt with the Făgăraș Mountains behind it.
One of the largest Gothic hall churches in the Târnava valley, with a massive bell tower and a walled enclosure with towers; part of the wall collapsed in June 2026.
The oldest building in Galați, a merchants' church consecrated in 1647, with walls up to 1.8 m thick, a bell tower and a fortified loft with 28 loopholes, on the bank of the Danube.
The ruins of a 13th-century stone fortress on Dealul Cetății above Șiria, with walls, towers and a wide view over the Arad Plain.
The ruins of a medieval fortress on the Danube bank, documented in the time of Mircea the Elder and held by the Ottomans until 1829, with a consolidated round central tower.
The best-preserved bastion of Brașov's city walls, built by the weavers' guild in the 15th and 16th centuries, with timber galleries on four levels and a model of the medieval town.