- Arad fortress (similar to Alba Iulia, but less well known, currently a military base): https://maps.app.goo.gl/a2Dw3W2CKCpU7cJA7
- Oradea fortress (same as above, but open to the public): https://maps.app.goo.gl/a2Dw3W2CKCpU7cJA7
- Târgu Mureș fortress (slightly smaller than the ones above, but also notable): https://maps.app.goo.gl/qcwSFL9hGqoCZXWv7
- plus lots of villages and smaller towns in Transylvania also have fortresses or fortified churches: Biertan https://maps.app.goo.gl/VVMkpaFbf7HJjbPQA, Râșnov https://maps.app.goo.gl/1LnB5h2sTj1WRmTk7, Saschiz https://maps.app.goo.gl/Yb5dDz38xXyy8JEZ7, Viscri https://maps.app.goo.gl/318uMB1fEvpqXSzi7, Rupea https://maps.app.goo.gl/6hTM8PtkQhQxXcyG8