The Temple of Hera, also known as the Heraion or the Heraion of Olympia, is an ancient temple located in the sanctuary of Olympia, Greece. This temple is dedicated to Hera, the queen of the gods in Greek mythology. The temple was one of the most important religious sites in ancient Greece and a major center for athletic competitions and festivals.

The construction of the Temple of Hera began around 600 BCE and was completed in 560 BCE. It is considered one of the earliest examples of Doric architecture and is known for its impressive size and grandeur. The temple stands on a platform surrounded by columns, with a rectangular cella containing two rows of columns inside. The exterior columns are made of local limestone, while the interior columns are made of more durable Pentelic marble.

The Temple of Hera was not only a place of worship but also a site where significant events took place. It hosted the Olympic Games, which were held every four years to honor Zeus, but also included events dedicated to Hera. These games were among the most prestigious athletic competitions in ancient Greece.

Despite its historical importance, the Temple of Hera suffered significant damage over time due to earthquakes and later destruction by fire. However, archaeological excavations have revealed much about its original structure and decoration. The site also includes other structures such as altars, treasuries, and statues that contributed to its significance as a religious and cultural center.

Today, visitors can still see remnants of this ancient temple at Olympia. The site offers a glimpse into the architectural achievements and religious practices of ancient Greece, making it an invaluable resource for understanding both history and culture.