The Republic of Armenia is a landlocked country located in the South Caucasus region of Eurasia. It shares borders with Turkey to the west, Georgia to the north, Azerbaijan to the east, and Iran to the south. The capital city is Yerevan, which is one of the oldest continuously inhabited cities in the world. Armenia has a rich cultural heritage, known for its ancient churches and monasteries. Armenia is a unitary parliamentary republic, with a population of about 3 million people. The official language is Armenian, and the country has a diverse landscape that includes mountains, forests, and lakes. The Ararat mountain, a national symbol, is located just across the border in Turkey. Armenia is also recognized for its early adoption of Christianity, becoming the first nation to declare it as the state religion in 301 AD.