This combination photo shows a view of the Ponte de Amizade (Bridge of Friendship) in Macao, south China (top, photo by Tang Mengzong, archived on December 31, 1995) and the Hong Kong-Zhuhai-Macao Bridge seen from Macao, south China on October 22, 2018 (bottom, photo by Yin Bogu). On December 20, Macao will celebrate the 20th anniversary of its return to motherland. Over the past two decades, the special administrative region has made great strides in economic development and achieved prosperity and stability under the "one country, two systems" principle. Since December 20, 1999, the historic day for Macao, what has changed? And what remains unchanged? Our selection of photos present comparative illustrations of the south China city's past and present. [Xinhua]

This combination photo shows a view of Rua das Estalagens, one of the earliest streets in Macao (top, photo by Tang Mengzong, issued on August 26, 1986), and a street view of Macao, south China on September 27, 2019 (bottom, photo by Qin Qing). On December 20, Macao will celebrate the 20th anniversary of its return to motherland. Over the past two decades, the special administrative region has made great strides in economic development and achieved prosperity and stability under the "one country, two systems" principle. Since December 20, 1999, the historic day for Macao, what has changed? And what remains unchanged? Our selection of photos present comparative illustrations of the south China city's past and present. [Xinhua]

This combination photo shows people watching a performance at Clube Militar (Military Club) in Macao, south China (top, photo by Bi Yuenian, archived on August 4, 1993) and dancers performing on street during the International Youth Dancing Festival in Macao, south China on July 20, 2019 (bottom, photo by Cheong Kam Ka). On December 20, Macao will celebrate the 20th anniversary of its return to motherland. Over the past two decades, the special administrative region has made great strides in economic development and achieved prosperity and stability under the "one country, two systems" principle. Since December 20, 1999, the historic day for Macao, what has changed? And what remains unchanged? Our selection of photos present comparative illustrations of the south China city's past and present. [Xinhua]

This combination photo shows an older image of the A-Ma Temple, a temple honoring the Chinese sea-goddess Mazu (top, photo by Bi Yuenian, issued on August15, 1992), and the same religious complex in Macao, south China on April 2, 2019 (bottom, photo by Cheong Kam Ka). On December 20, Macao will celebrate the 20th anniversary of its return to motherland. Over the past two decades, the special administrative region has made great strides in economic development and achieved prosperity and stability under the "one country, two systems" principle. Since December 20, 1999, the historic day for Macao, what has changed? And what remains unchanged? Our selection of photos present comparative illustrations of the south China city's past and present. [Xinhua]

This combination photo shows contestants taking part in the traditional Tray Race in front of the Ruins of St. Paul's complex in Macao, south China on September 27, 1999 (left, photo by Wang Yuguo) and on September 27, 2019 (right, photo by Cheong Kam Ka), respectively. On December 20, Macao will celebrate the 20th anniversary of its return to motherland. Over the past two decades, the special administrative region has made great strides in economic development and achieved prosperity and stability under the "one country, two systems" principle. Since December 20, 1999, the historic day for Macao, what has changed? And what remains unchanged? Our selection of photos present comparative illustrations of the south China city's past and present. [Xinhua]

(Source: Xinhua)