Given that Armenia was the first state to adopt Christianity as an official state religion in A.D. 301 (10 years before it was recognized by the Roman Empire), it is not surprising that the country has a rich and ancient religious heritage. It is estimated that there are tens of thousands of important Christian sites in the country, although many of them have fallen into disrepair.
Armenia's Ancient Christian Monuments

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The ancient Tatev Monastery in Armenia's southern mountains, close to the border with Iran

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Two thousand-year-old churches overlook Lake Sevan, which is Armenia's largest freshwater lake