The majority of it was built during the first two decades of the 15th century under the patronage of Yong-le.  
Highly symmetric, its largest buildings are all located in a north-south line along its center.  Those structures include the u-shaped Meridian Gate and the central-most Hall of Supreme Harmony- which contained the official throne of the emperor for the most important affairs of state.  The majority of it was built during the first two decades of the 15th century under the patronage of Yong-le.  Now referred to as the Palace Museum by its nation's government, FTP, identify this orange-colored palace complex in Beijing, China.
Highly symmetric, its largest buildings are all located in a north-south line along its center.  
Forbidden City (prompt on "Palace Museum" before mentioned)