Macau: China's other 'one country, two systems' region
Macau, a tiny former Portuguese colony, is marking the 20th anniversary of its return to China.
The Special Administrative Region, which measures 12 sq miles (31 sq km), uses the same political model as Hong Kong - "one country, two systems".
That guarantees a "high degree of autonomy" for the regions for 50 years with Beijing maintaining control of defence and foreign affairs.