The Pantheon is an iconic landmark in Rome and a former Roman temple now reborn as a Catholic church- the Basilica Santa Maria ad Martyres. It dates to the time of Marcus Agrippa, who commissioned it during the reign of Augustus in 27 BC, though it was later destroyed by fire in 80 AD and rebuilt by the Emperor Hadrian between 113 and 125 AD in its present form. Its monumental architecture features a rotunda encased in concrete beneath a giant dome with a central opening to the sky, and adorned with eight Corinthian columns arranged in a double colonnade. The Pantheon stands as a testament to the skill of Ancient Rome's architects and engineers, and has inspired countless imitations in the succeeding centuries. Even today it holds the record for largest unreinforced concrete dome. From its original use as a temple to its current role as a church and cultural landmark, the Pantheon stands as one of the most impressive and enduring monuments in Rome.