Risultati della ricerca

....jpg|thumb|Stone sphere in the courtyard of the [[National Museum of Costa Rica]] ]] ...'''stone balls of Costa Rica'''. These are the best-known stone sculptures of the [[Isthmo-Colombian]] area.

...'list of monoliths''' organized according to the size of the largest block of stone on the site. A [[monolith]] is a large stone which has been used to b ... [[Treadwheel crane|treadwheel]]s to help lift colossal stones (see [[List of ancient monoliths]]).