Subterranean Roman aqueduct channel, built by the Roman army to bring water to Viminacium in modern Serbia. Despite the popular image of grand aqueduct bridges, many Roman aqueducts ran almost entirely underground. #archaeohistories

Big-eyed figures carved into a stone block on the remote Pacific island of Nuku Hiva, probably depicting ancient deities or ancestors. They are found in several different places on Marquesas Islands, French Polynesia, and are thought to date back to the 11th-14th Century AD. Strange very ancient drawings of creatures with large eyes are also found in the neighboring region of Australia. #archaeohistories