The kitsch tun­nel runs under the Huang­pu Riv­er in Shanghai’s water­front Bund dis­trict and is one of the city’s top tourist attrac­tions. It might be pricey and gim­micky but a ride on the auto­mat­ed train cer­tain­ly leaves an impres­sion with its flash­ing strobe light and sound show. Tun­nel lovers will also love Shang­hai’s aquar­i­um, which lays claim to hav­ing the world’s longest sub­ma­rine view­ing tun­nel at 551 feet (168m).