Top 100A Saxon peasant fortress climbing in tiers up a basalt hill above the town of Rupea, first recorded in 1324 and restored in 2010–2013, with wide views over the Transylvanian hills.
A Romanesque basilica from the turn of the 12th and 13th centuries, left almost unaltered, on the rocky top of St Michael's Hill, ringed by a defensive wall and looking out to the Făgăraș Mountains.
A square 15th-century watchtower perched on a rock outside Brașov's western walls, with a glass pyramid roof and a platform looking out over the old town and the Black Church.
A Dacian fortress on Cetățuia hill, at the gateway to the Orăștie Mountains: earth ramparts, a stone wall built in the Hellenistic manner, tower houses and temples, a UNESCO site.
A 15th-century horseshoe-shaped defence tower perched on a rock above the Graft, with one of the best views over Brașov's old town.
A bastioned fortress on Citadel Hill, north of the old town, built to stop enemies firing on Brașov from the heights; the interior is closed for works, but the walls and the view can be enjoyed from the paths on the hill.
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.
The only surviving medieval gate of Brașov's walled town, a white tower of 1559 with four corner turrets and the town's coat of arms; next to it, the neoclassical Șchei Gate of 1827–1828.
One of the strongest Dacian fortresses in the Orăștie Mountains: murus dacicus walls, six towers and a dog-leg entrance, on a wooded hill above Costești, a UNESCO site.
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.
A Dacian fortress on top of a rocky hill above Luncani, with an ancient paved road of stone steps and tower ruins hidden in the forest; a UNESCO site, far from the crowds.
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 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.
Top 100