The Giants' Tomb of Zanchia has a dolmen-like structure, which preserves the funerary corridor, a bilithic stele three metres high and part of the right wing of the exedra. The outline of the tomb’s core can no longer be seen.
There are still some orthostatic stones in the exedra, which served to support the structure: three remain in the right part but only one in the left.
The corridor is 9.93 metres long and around 80 cm meter wide with a south-east facing entrance and a rectangular plan, marked out by rough-hewn stones arranged in rows.
The lower panel of the bilithic stele is fixed to the centre of the hemicycle while the upper crescent lies upturned in the right part of the exedra.
The lower part of the stele has a trapezoidal shape with the characteristic curved door in the centre.
In the exposed part of the stele, bordered by the classic cornice in relief, there are four distinctive spherical cavities. Two of these, in the highest part, appear to be still intact while the other two below are quite damaged.
In the upper part of the arched slab, there is the usual foundation recess that doubtlessly supported the arched element, 1.27 metres high and 1.15 metres wide, with cornice.