Pantheon, a temple in Rome, first erected by Agrippa, son-in-law of Augustus, circular in form, 150 ft. in height, with niches all round for statues of the gods, to whom in general it was dedicated; it is now a church, and affords sepulture to illustrious men. Also a building in Paris, originally intended to be a church in honour of the patron saint of Paris, but at the time of the Revolution converted into a receptacle for the ashes of the illustrious dead, Mirabeau being its first occupant, and bearing this inscription, Aux grands hommes la patrie reconnaissant; it was subsequently appropriated to other uses, but under the third republic it became again a resting-place for the ashes of eminent men.