Mindboggling roads
© Alamy
In 2017, a multi-level, 20-road flyover opened to the public in Chongqing, China. Known as the Huangjuewan interchange, this labyrinth of lanes was built to connect Chongqing’s airport with the city and two intersecting expressways. The flyover comprises 15 ramps over five levels, the highest of which is around 37 metres above ground. All in all, there are more than ten miles of road making up the interchange.