The platform is called Ahu Ature Huki
The carvers hit a harder rock and stopped carving.
Easter Island (Rapa Nui: Rapa Nui, Spanish: Isla de Pascua) is a Polynesian island in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle. A special territory of Chile that was annexed in 1888, Easter Island is famous for its 887 extant monumental statues, called moai, created by the early Rapanui people. It is a UNESCO World Heritage Site, with much of the island protected within Rapa Nui National Park. In recent times the island has served as a warning of the cultural and environmental dangers of exploitation. Ethnographers and archaeologists also blame diseases carried by European sailors and Peruvian slave raiding of the 1860s for devastating the local peoples.