H.TNLC canal tunnel

a tunnel through which a canal passes

17 features in 7 countries.

#CountryFeaturesShare of the world
1GermanyDE8
2MexicoMX3
3PeruPE2
4AfghanistanAF1
5FinlandFI1
6IranIR1
7PakistanPK1
Total17