The monument is formally known as 'Kubus' but is frequently referred to by locals as 'Živi Kubus' (Living Cube).
It is situated on the historical Josephina and Theresa trade routes that linked inland Lika with the Adriatic coast.
The monument was specifically built to commemorate the site of a visit by the Austrian Archduke John of Austria during the construction of the road.
The coordinates place the monument within the Velebit Nature Park, a UNESCO World Biosphere Reserve.
The stone used for the construction was quarried locally, reflecting the geological composition of the northern Velebit range.
Kubus, also known as the Iron Cube, is a prominent stone monument located at the Oštarije pass in the Velebit mountains. Erected in 1846, it marks the completion of the historic Theresa Road, which connected Gospić with the coastal town of Karlobag. The monument sits at an elevation of 928 meters above sea level on a rocky outcrop. It features a massive stone cube resting on a pedestal, representing a technical feat of mid-19th-century engineering in challenging mountainous terrain. The site offers a vantage point overlooking the Adriatic Sea and the islands of Pag, Rab, and Lošinj. It serves as a historical waypoint for hikers traversing the Velebit massif. The structure commemorates the influence of the Austrian Empire on regional infrastructure development.
From the western side of the pedestal looking toward the Adriatic Sea to capture both the monument and the coastal panorama.
Wear sturdy hiking footwear as the terrain around the monument is rocky and uneven.
Bring a windbreaker or outer layer, as the Oštarije pass is notorious for strong Bura winds, even in summer.
Carry binoculars to identify the specific islands visible across the Velebit Channel.
Attempting to visit during severe weather warnings, specifically when Bura winds are high, as the pass can become dangerous.
Respect the monument as a protected historical site; do not climb, sit, or deface the stone structure.