Mount Ararat with the historic Khor Virap monastery visible at center-left

Architecture & Monasteries

Etchmiadzin Cathedral, built 301-303 AD by Gregory the Illuminator and King Tiridates III, is widely considered the world's oldest cathedral, predating all other Christian cathedrals.

Source

Illuminate
Armenia

Etchmiadzinย Cathedral,ย builtย 301-303ย ADย byย Gregoryย theย Illuminatorย andย Kingย Tiridatesย III,ย isย widelyย consideredย theย world'sย oldestย cathedral,ย predatingย allย otherย Christianย cathedrals.ย 

516Architecture & Monasteries