drawing: Oslo Municipality

Roma Metro C Line C Advancement of TBM towards Piazza Venezia Graphics by Metro C SpA

Rogfast undersea tunnel project in Norway. (image Statens Vegvesen)

Strait of Messina

A Stad Skipstunnel route (from Wikimedia Oliver O'Donnell / CC BY-SA

Tunnel profile of the first proposed ship tunnel in the world, Stad Skipstunnel in Vestland, Norway. (image: Wikimedia)

Herrenknecht TBM for Santa Lucia tunnel in Italy between Bologna and Florence. Photo by Herrenknecht press release.

Московские центральные диаметры (МЦД) Moscow Central Diameters graphic: Government of Moscow press office  

Image by Strabag

Vancouver Broadway subway line - image by Acciona press release.