The nucleated village with Istrian and Karst architecture is formed at the foot of the Karst edge.
The tight centre of the village is intertwined by narrow streets (buildings in lines or closed courtyards), and the main street is winding up towards the Grad Cave with the spring of the Osp River. Before the cave, there used to be a castle – fort, and today you can see the remains of the defensive walls.
At the edge of the village, you can also visit the Church of St Thomas from the 18th century.
But the village of Osp is also a paradise for sport climbing. Above the settlement, there is a U-shaped climbing wall, which represents one of the most important climbing areas in Europe.