Pietre del viandante are obelisks which act as magical portals allowing travel between two different places. They are activated by a combination of three segni dei witcher. In The Witcher, pietre del viandante are used to enter and exit tre antiche cripte located nel cimitero della palude and each pair is activated with a unique combination of Igni e Aard.
There is also a pair pietre del viandante which feature in one of the missioni in the module. These pietre allow passage from the magazzino in the slums to le rovine elfiche and back. These are activated by casting the Aard sign three times in a row.