Guangzhou's Canton Tower (formerly the self-defining TV Astronomical and Sightseeing Tower) is a twisting geometric latticework that climbs to a frightening 462 metres. Designed by Mark Hemel and Barbara Kuit, it topped out in 2011 and lights up in a swirling rainbow of colours every night.
Guangzhou, China
May 2012 ▪ Pentax K10D