The Temple of Jupiter, part of the Baalbek Ruins in Lebanon, is one of the grandest sanctuaries of Roman times and a testament to the architectural ambition and engineering prowess of the ancient Romans. This colossal temple complex was dedicated to Jupiter Heliopolitanus and is located within the Baalbek temple complex, which also includes the Temples of Bacchus and Venus. The platform on which the temple stood was built with some of the largest stone blocks ever hewn. Out of the original 54 giant Corinthian columns, only six remain standing, but even these are incredibly impressive, each towering at a height of about 22 meters. The site was known as Heliopolis during the Hellenistic period. These ruins are a UNESCO World Heritage site and are among the most important Greco-Roman sites in the Eastern Mediterranean, offering valuable insights into ancient architectural practices and religious beliefs.