Postcard from Hong Kong

Statistics may be not updated, or unprecise, but:

- highest population density in the world (Mong Kok district 130,000 in one square kilometer)
- longest bridge span for car and train traffic (Tsing Ma Bridge, opened May 1997, main span of 1.377 m)
- largest permanent light show in the world ( A Symphony of Lights, 13-minute long show of synchronized light and sound, performed on the existing 20 high-rises on the Hong Kong Island, since January 2004).

http://www.brandhk.gov.hk/en/xml/funfacts_main.xml