The building is circular with a portico of large granite Corinthian columns eight in the first rank and two groups of four behind under a pediment. A rectangular vestibule links the porch to the rotunda, which is under a coffered concrete dome, with a central opening oculus to the sky. Almost two thousand years after it was built, the Pantheon`s dome is still the world`s largest unreinforced concrete dome.

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拍攝者： Tetyana1235