Khor Virap is the most famous pilgrimage site in Armenia, as it is directly connected with the adoption of Christianity. As a state religion, Christianity in Armenia was adopted in 301 due to endeavors of Saint Gregory The Illuminator, who, before converting King Trdat The 3rd to Christianity, was imprisoned in the dungeon, over which a church of Khor Virap monastery was built in the 17th century. From the monastery one can admire the stunning view of the Biblical Mount Ararat.
 

The Temple of Garni is the only standing Greco-Roman colonnaded building in Armenia and the former Soviet Union. Built in the Ionic order, it is located in the village of Garni, in central Armenia. It is the best-known structure and symbol of pre-Christian Armenia. After adopting Christianity in 301, the pagan temple lost its significance and the fortress of Garni became the summer residence of the kings. Near the temple you can see the ruins of the royal palace and the bathroom with a stunning mosaic work.

Geghard monastery is the unsurpassable masterpiece of the 13th century Armenian architecture. Some of the churches of the complex are masterfully hewn in a huge rock. From the outset the complex was called Ayrivank (cave monastery), later it was renamed Geghard (lance) as the lance, used by the roman soldier to sting Jesus Christ’s side, had been kept in this monastery for many centuries. Due to its construction, Geghardavank serves the best place for singing spiritual songs. The complex is rich in subtle sculptural embellishments and many striking khachkars (cross-stones). The site is included in UNESCO World Cultural Heritage List.