Zaofu is an autonomous city state, home of the Metal Clan, and regarded by some as the safest city in the world. The clan's matriarch, Suyin Beifong, constructed the settlement entirely out of metal in the United Earth Nations. Team Avatar traveled to this city in 171 AG in their search to recruit new airbenders to rebuild the Air Nation. In 174 AG, the city was annexed to Kuvira's Earth Empire, who sent off all the citizens who refused to acknowledge her rule, as well as take down its protective platinum domes. After the failed invasion of the United Republic of Nations, Kuvira surrendered and relinquished control over the Earth Kingdom, which restored Suyin as the city's leader.