The Standing Stones of Callanish is one of the best stone circles in the country. It is thought to have been created sometimes between 3000 and 1500 B.C.
By the west coast stands Dun Carloway Broch (16mi/25.6km northwest of Stornaway). This Pictish fortified farm dates from the fourth century B.C. It stands at a height of about 164ft/50m above sea level and measures 52ft/16m in diameter. The double walls are 10ft/3m thick in places and on one side they reach a height of 33ft/10m. Several steps form a link inside the mortar-free double walls and four chambers can be made out within the inner wall.
The Calanais Blackhouse dates back from 1760 to 1800. A blackhouse was comprised of a long narrow building, usually with one or more additional buildings laid parallel to it and sharing a common wall. The animals lived under the same roof and in the byre area there would be earth flooring.
North of Black House a group of stones arranged in an oval can be seen near Ballantrushal. These standing stones are thought to date from the third or second millennium B.C.