Seoul turns 1970s' 3,000-ft-long overpass into garden bridge
The South Korean capital of Seoul has transformed a 3,000-foot-long overpass into a garden bridge featuring 24,000 plants. The 55-foot-high park garden bridge, which cost approximately $50 million to build, is called Seoul Street. It has been built on a 1970s' motorway flyover no longer considered safe for its original purpose.