In the city of Hangzhou in east China 's Zhejiang Province carriages have been decorated with intricate 3D designs . The design is made up of thousands of tiny dots and lines that are arranged to form a pattern, which can be seen from all angles thanks to special glasses worn by passengers on board. Photographs of the beautiful carriages were shared widely on social media and were very popular with commuters .
In the city of Hangzhou in east China 's Zhejiang Province carriages have been decorated with intricate 3D designs . Art on the Hangzhou Subway line was advertising sanitary towels and coincided with International Women 's Day . Photographs of the beautiful carriages were shared widely on social media and were very popular with commuters .