Ang Lucky Knot ay tinatawag na footbridge ng bakal sa lungsod ng Tsina ng Changsha, na hugis tulad ng isang dragon o isang ahas, na may haba na 185 metro at taas na 24 metro. Lucky Knot Footbridge of Changsha / the Dragon Bridge → Completed in 2013 by the NEXT architects studio and opened to the public three years later, it is considered to be one of the most impressive bridges around the world. Lucky Knot bridge crosses over the Dragon King Harbour River in the fast-growing Meixi Lake district of the 7 million resident city of Changsha in South-Central China. Ang distrito ng Meixi Lake ay isang 6.5 milyon-square-meter development masterplanned ni Kohn Pedersen Fox http://www.kpf.com/projects/meixi-lake, isang globally operating architecture firm na may mga tanggapan sa New York, Shanghai, London at Hong Kong.
