Capitol

noun

1. A building or complex of buildings in which a state legislature meets.
2. The building in Washington, DC, where the Congress of the United States meets.
3. In Rome, and in Roman cities and colonies, the precinct and temple of Jupiter Optimus Maximus, the protector of the city.
4. In the United States, the edifice occupied by Congress at Washington; also, in the separate States, the state-house, or house in which the legislature holds its sessions.
5. The temple of Jupiter, at Rome, on the Mona Capitolinus, where the Senate met.