Claustra Alpium Iuliarum

is a Late Roman barrier system, which guarded the crossings to Italy between the 3rd and 5th centuries. The stone walls, which were in some places positioned in several lines, were supplemented by towers, fortlets and forts. The mighty system stretched from today's Rijeka in Croatia to the Bača Ravine (Baška grapa) in Slovenia.

Defense Towers
Forts and fortlets
A new publication about CAI

Read about the newest discoveries of the barrier system! The final publication about claustra Alpium Iuliarum was published a few months ago. It contains several interesting articles about the recent archaeological investigations of the late…

Emerald Adventure along the Ajdovski zid near Vrhnika

In the framework of the project CLAUSTRA+ we have prepared an adventure for the whole family! It starts between Vrhnika and Logatec, where the longest section of claustra Alpium Iuliarum, called the Ajdovski zid, is…

Geocahing along the roman barrier wall

As part of the Claustra+ project, we have joined the Geocaching community at the National Museum of Slovenia. A cache called Po sledeh velikanov (“On the Path of the Giants”) is now hidden near the…

Exhibition “Flora on both sides of the wall”

Plants are often taken for granted, and we do not pay particular attention to them, although they have played and continue to play an important role in all civilizations. In antiquity, people were more closely…

Soldiers guard the fort in colourful Late Roman combat equipment. Take a walk through our gallery and experience the past!