Claim: Kotavank, located in Nerkin Getashen, Gegharkunik Province,  Armenia, is a domed cruciform central-plan museum founded by Grigor Supan and completed in the 9th century.
Evidence: Kotavank (Armenian: Կոթավանք or Կոթի Սուրբ Աստվածածին եկեղեցին; also Surb Astvatsatsin meaning "Holy Mother of God") is a church located on a hill overlooking the Argitchi River and village of Nerkin Getashen, south of Lake Sevan in the Gegharkunik Province of Armenia. Domed cruciform central-plan Grigor Supan 9th century