Alba Iulia Citadel

Alba Iulia Citadel be visited in the following tours:

• Alba Iulia Citadel tour from Cluj-Napoca

• Day trip to Alba Iulia from Sibiu

You can book now with the local guides Romanian Friend recommends - see how it works

Romania’s largest Vauban citadel, Alba Iulia Fortress or Alba Carolina Citadel by its secondary name, also known as Alba Carolina Fortress, is remarkable not only for its architecture and the beauty of its gates, but also as a symbol of the history of Romania and this part of the region.

The city of Alba Iulia is closely linked to the Great Union of 1918, when the union of Transylvania with Romania was proclaimed, and the fortress also stands as a witness to an even older past, including Michael the Brave’s 1600 union of the three Romanian principalities and the later bond with the kingdom. This is why some Romanians like to refer to the city as ‘the other capital’ :)

For this reason, Alba Iulia Citadel was included on our list of must see sights in Transylvania - check out the entire list!

The History of Alba Iulia Fortress

Built between 1716 and 1735 under the rule of King Carol the 6th, the citadel was part of the fortification system created by Prince Eugene of Savoy to defend the Habsburg Empire’s newly conquered provinces in Transylvania. These Savoy designed fortifications later functioned as a military center in the 18th and 19th centuries, and today they are recognized among the largest of their kind in Europe.

The fortress has a seven-point star shape, with seven bastions and massive walls around a perimeter of about 12 km: The Trinity, St. Stefan, Eugen of Savoia, St. Michael, St. Carol, St. Capistrano and St. Elisabeth.

During your visit here, you can see monuments which date back over 2000 years - due to the complexity and variety of sights within the citadel, there are several types of tours within the amazing Alba Iulia citadel. Check out the official city tourist page.

Also, if you are planning to visit Alba Iulia Citadel - we would highly recommend to also check Sibiu Tours and Transfagarasan Tours.

• Romanian Friend tip: Don’t miss the Guard Change ceremony, which takes place daily at 12:00 during the tourist season from May to September, sometimes twice a day on weekends, with guards in 18th-century uniforms specific to infantry, cavalry, artillery, and commanders, plus parades of Roman and Dacian warriors, as well as fighting demonstrations which take place every Friday starting 7pm during the touristic season from April to October.

Related tours and main attractions

• Day Trip: Turda Salt Mine & Alba Iulia Citadel

Start from: Cluj-Napoca (pick-up)
During your visit here, you can see monuments, bastions, cathedrals, and squares across the fortress. The National Union Museum is a key museum in the citadel, housed in the Babilon Building. Its interactive exhibits explore the history of Transylvania and the unification of Romania. Located near the heart of the fortress, the Third Gate is often seen as the main gate highlight, and its Baroque design makes it the most impressive of the six gates.

• Corvin Castle and Alba Iulia Citadel Tour

Start from: Sibiu
Before you go, check the citadel events program in advance so you can time your visit around ceremonies or different tours. Plan a simple route for walking, and wear comfortable footwear because the paved paths are easier to enjoy that way. Bring water and snacks, especially if you are visiting with children or plan to explore all day.

• St. Michael’s Roman Catholic cathedral is a standout inside the citadel, a Romanesque landmark with more than 800 years of history.
• The Alba Carolina Fortress is the largest star-shaped fortification in Romania, built on a seven-point plan with six gates and seven bastions.
• The Guard Change ceremony has been a symbol of the Alba Iulia Citadel since 2009 and attracts thousands of visitors each year.