Armenia is a nation (and former Soviet republic), in the mountainous Caucasus region straddling Asia and Europe. Among the earliest Christian civilizations, it’s defined by religious sites including the reconstructed Greco-Roman Temple of Garni and 4th-century Etchmiadzin Cathedral, headquarters of the Armenian Church. Mount Aragats formerly is an isolated four-peaked volcano massif in Armenia. Its northern summit (4,090m), is the highest point of the Lesser Caucasus and Armenia. It is also one of the highest points in the Armenian Highlands.