<Tr> <Th> Designated CP </Th> <Td> July 23, 1973 </Td> </Tr> <Tr> <Th> Designated NMSRCP </Th> <Td> September 29, 1972 </Td> </Tr> <P> The Palace of the Governors (1610) is an adobe structure located on Palace Avenue on the Plaza of Santa Fe, New Mexico, between Lincoln Avenue and Washington Avenue . It is within the Santa Fe Historic District and it served as the seat of government for the state of New Mexico for centuries . The Palace of the Governors is the oldest continuously occupied public building in the United States . </P> <P> In 1610, Pedro de Peralta, the newly appointed governor of the Spanish territory covering most of the American Southwest, began construction on the Palace of the Governors, although recent historical research has suggested that construction began in 1618 . In the following years, the Palace changed hands as the territory of New Mexico did, seeing the Pueblo Revolt of 1680, the Spanish reconquest from 1693 to 1694, Mexican independence in 1821, and finally American possession in 1848 . The Palace originally served as the seat of government of the Spanish colony of Nuevo Mexico, which at one time comprised the present - day states of Texas, Arizona, Utah, Colorado, Nevada, California, and New Mexico . After the Mexican War of Independence, the Mexican province of Santa Fe de Nuevo México was administered from the Palace of the Governors . When New Mexico was annexed as a U.S. territory, the Palace became New Mexico's first territorial capitol . </P>

Palace of the governors new mexico history museum