The Temple of Garni is a well-known Hellenistic temple located in the Kotayk province of Armenia, about 28 kilometers from the capital city, Yerevan. The temple was built in the 1st century AD by King Tiridates I of Armenia, on the site of an earlier pagan temple. It is the only surviving pagan temple in Armenia, and one of the most recognizable landmarks in the country.

The temple is made of local basalt and is designed in the Greco-Roman architectural style. It was dedicated to the sun god Mihr and was part of a royal palace complex. The temple's design includes a main hall with 24 columns, and a pediment that features a depiction of Apollo riding a chariot across the sky. The temple also has an adjoining bathhouse that was used for ritual purification before entering the temple.

In the 4th century AD, Armenia became the first nation in the world to adopt Christianity as its state religion, and the temple was converted into a church. Later, during the Arab invasion in the 8th century, the temple was destroyed, and the site was abandoned. In the 20th century, the temple was reconstructed and restored to its former glory. Today, it is a popular tourist destination and a UNESCO World Heritage Site.

Visitors to the Temple of Garni can explore the site and take in the beautiful views of the surrounding mountains and valleys. It is also a popular spot for cultural events and concerts.