Hall of Supreme Harmony.

The Emperor entered to cries of  'ten thousand years', the same cries  would greet Mao Zedung centuries later.  The cranes flanking the throne are symbols of longevity.

Much of the imperial treasure can be seen in Taipei's National Palace Museum having been looted by the Kuomintang on the eve of the communist revolution.

Zoomorphic Watch

On the four corners of the roofs, mythological creatures led by a god astride a phoenix, protect the buildings from lightning and fire