Sumatra is the largest island entirely in Indonesia (two larger islands, Borneo and New Guinea, are shared between Indonesia and other countries), and the sixth largest island in the world.
Lake Toba Ambarita / statues
Lake Toba Ambarita / tombs
Lake Toba Ambarita / market
Lake Toba Simanindo / Royal tombs
Lake Toba Simanindo / Palace of the Batak king
Lake Toba Tomok / tombs
Lake Toba Pangururan / hot springs
Lake Toba Pangururan / boiling eggs in the hot springs