This charming lighthouse, built in 1891, is located in the northern part of the island. The building's height reaches 19 meters. The construction of the lighthouse was decided after the sinking of the VOLTA steamship, in which all 11 crew members drowned. The original mechanism of the lighthouse (built by Sauter -Lemonier and winning in the International Paris Exhibition) operated until 1983.

Now it is exhibited in the Aegean Maritime Museum. By 1985 the lighthouse Armenistis had a permanent lighthouse keeper, but now is fully automated. You can reach the Armenistis lighthouse by driving, from Agios Stefanos.