Brief synthesisThe complex of temples at Baalbek is located at the foot of the south-west slope of Anti-Lebanon, bordering the fertile plain of the Bekaa at an altitude of 1150 m. The city of Baalbek reached its apogee during Roman times. The acropolis of Baalbek comprises several temples. The Temple of Jupiter, principal temple of the Baalbek triad, was remarkable for its 20 m high columns that surrounded the cella, and the gigantic stones of its terrace. The Odeon, located south of the acropolis in a place known as Boustan el Khan, is also part of the Baalbek site, and considered among the most spectacular archaeological sites of the Near East. Baalbek became one of the most celebrated sanctuaries of the ancient world, progressively overlaid with colossal constructions which were built during more than two centuries.