Armenia contains the oldest state-built church in the world. Etchmiadzin Cathedral was constructed in 303 AD in what is now the city of Vagharshapat, approximately 20 kilometers west of Yerevan. The cathedral remains the mother church of the Armenian Apostolic Church and functions as the seat of the Catholicos of All Armenians. The compound includes the cathedral itself, a museum containing religious artifacts and illuminated manuscripts, and several smaller churches. The Vatican recognizes this site as the oldest cathedral constructed by a national government rather than a private patron or monastic order.
Geghard Monastery sits at the end of the Azat River gorge approximately 40 kilometers east of Yerevan. The main chapel was completed in 1215, though the site contains earlier structures. Multiple chambers within the complex are carved directly from the cliff face, including the Avazan, a hall with a spring that pilgrims considered holy. The monastery appears on UNESCO's World Heritage List since 2000. The acoustic properties of the rock-carved chambers make this a frequent venue for recordings of Armenian liturgical music.
Garni Temple stands as the only Greco-Roman colonnaded structure remaining in Armenia or any former Soviet republic. The temple was constructed in the first century AD during the reign of King Tiridates I, rebuilt after a 1679 earthquake destroyed it, and restored between 1969 and 1975 using surviving original stones. The structure contains 24 columns in the Ionic order and sits on a triangular promontory overlooking the Azat gorge. Archaeologists excavated a Roman bath complex with a geometric mosaic floor adjacent to the temple in the 1950s.
Tatev Monastery occupies a basalt plateau at the edge of a gorge in southern Armenia near the town of Goris. The main church dates to 898 AD. The monastery operated the University of Tatev from the 14th through 16th centuries, one of the major centers of Armenian philosophical and scientific thought during that period. Access from the village of Halidzor became significantly faster in 2010 when the Wings of Tatev aerial tramway opened. At 5,752 meters, this held the Guinness record for longest non-stop double-track cable car until 2017. The tramway reduced the approach time from 40 minutes by road to 12 minutes in the air.
Lake Sevan sits at 1,900 meters above sea level and covers approximately 1,240 square kilometers, making it one of the largest high-altitude freshwater lakes globally. The lake historically covered 1,360 square kilometers before Soviet-era water diversion projects lowered its level by approximately 20 meters between 1933 and 1962. The government reversed these policies in the late Soviet period and post-independence, implementing a program to gradually raise the water level. Sevanavank, a monastic complex on what was formerly an island but became a peninsula when water levels dropped, contains two churches from 874 AD. The lake produces ishkhan, a subspecies of trout endemic to Sevan that near-extinction in the 1980s prompted fish farming operations that continue today.
Mount Aragats rises to 4,090 meters and contains four distinct peaks around a central crater. This dormant volcano represents the highest point entirely within Armenia's current borders. The Byurakan Observatory, established in 1946 on Aragats's southern slope, houses a 2.6-meter telescope that contributed to the First Byurakan Survey identifying thousands of galaxies with active nuclei. Climbers typically approach from the Amberd Fortress on the southern slope, a 7th-century structure at 2,300 meters that remains partially intact. The summit peaks require technical climbing equipment for the final approaches.
Khor Virap monastery sits at the base of Mount Ararat, approximately 100 meters from Armenia's border with Turkey. The location marks the pit where King Tiridates III imprisoned Gregory the Illuminator for 13 years before Gregory converted the king to Christianity in 301 AD, making Armenia the first state to adopt Christianity as its official religion. The current monastery buildings date from the 17th century, though the site has held religious significance since the 4th century. Ararat, at 5,137 meters, dominates the view from the monastery courtyard despite lying entirely within Turkey since the 1921 Treaty of Kars.
Dilijan National Park covers 240 square kilometers in northern Armenia and contains substantial portions of the country's remaining temperate broadleaf forest. The park includes Haghpat and Sanahin monasteries, both constructed in the 10th century and jointly inscribed on the UNESCO World Heritage List in 1996. Haghpat's scriptorium produced numerous illuminated manuscripts between the 11th and 13th centuries. The town of Dilijan itself has undergone restoration of its historic quarter since 2014, focusing on traditional Armenian stone and wood architecture from the 19th century. The park's forests contain Caucasian oak, hornbeam, and beech at lower elevations, with spruce and fir at higher altitudes.