Gavin Hellier / View of the Hall of Supreme Harmony in the Forbidden City, Beijing, China, February 2015. Hellier

Gavin Hellier / Crowds outside the Gate of Heavenly Peace, Tiananmen Square, Forbidden City, Beijing, China, February 2015. Hellier

Gavin Hellier / Crowds outside the Gate of Heavenly Peace, Tiananmen Square, Forbidden City, Beijing, China, February 2015. Hellier

David Tipling / Bronze carving of a Phoenix on one of the doors within the Forbidden City, Beijing, China, September 2008.

Kirkendall-Spring / Doorway in the Forbidden City of Beijing, China

Gavin Maxwell / Hwamei {Garrulax canorus} in birdcages, Beijing Forbidden City, November 06. 'Wild China' series

Gavin Maxwell / Laughing thrush / Hwamei {Garrulax canorus} in birdcages, Beijing Forbidden City, November 06, 'Wild China' series

Gavin Maxwell / Laughing thrush / Hwamei {Garrulax canorus} in birdcage. Beijing Forbidden City, China Nov 06. 'Wild China' series

Gavin Maxwell / Laughing thrush / Hwamei {Garrulax canorus} in birdcages, Beijing Forbidden City, November 06. 'Wild China' series

Pete Oxford / Chinese mythical animal, Forbidden City (National Palace Museum), Beijing, China 2006

Eric Baccega / Tiananmen Square, Beijing, China 2000

Eric Baccega / Tiananmen Square, Beijing, China 2000