Celebration of the Long Mass (three hours), on Easter Sunday in Surp Astvatsatsin church in Geghard Monastery. The monastery was founded in the 4th Century and is a unique architectural construction in the Kotayk province of Armenia, being partially carved out of the adjacent mountain, surrounded by cliffs. It is listed as a UNESCO World Heritage Site. Its name, meaning "the Monastery of the Spear", originates from the spear which had wounded Jesus at the Crucifixion, and was allegedly brought to Armenia. It is now the only monastery in Armenia with permanent monks.