The temple of Jupiter in Rome, and a fort or castle, on the Mons Capitolinus. In this, the Senate of Rome anciently assembled; and on the same place, is still the city hall or town-house, where the conservators of the Romans hold their meetings. The same name was given to the principal temples of the Romans in their colonies.

The edifice occupied by the Congress of the United States in their deliberations. In some states, the State-house, or house in which the legislature holds its sessions; a government house.