The Silla Kingdom tombs were mostly inaccessible and so many examples of Korean art came from this kingdom. The Silla craftsman were famed for their gold-crafting ability which have similarities to Etruscan and Greek techniques, as exampled by gold earrings and crowns. Because of Silla gold artifacts bearing similarities to European techniques along with glass and beads depicting blue-eyed people found in royal tombs, many believe that the Silk Road went all the way to Korea. Most notable objects of Silla art are its gold crowns that are made from pure gold and have tree and antler-like adornments that suggest a Scythe-Siberian and Korean shamanistic tradition.