The stone structure discovered at the end of the last century, located at the foot of St. Lawrence Mountain, is well known to researchers of early medieval sacred spaces. It is a unique object not only in terms of its form but, above all, in terms of its role in valorising the holy site and its biography. The original natural sacrificial site, in the form of a spring, was transformed into a sacrificial site in the form of a stone altar, on which an annexe of the Romanesque basilica was subsequently built. The final stage was the return to the pre-Christian sacrificial function of the space, the remnant of which is the so-called layer with bones. The paper will show the need to return to the analysis of this unique space with particular emphasis on the phase associated with the functioning of the stone altar. The paper will also show similar constructions from the Western Slavic area and further examples, which can be treated as analogies regarding meaning and functions.
