Algiers Metro – Cezayir
Groene Hart Tunnel – Hollanda
Benelux Tunnel – Hollanda
Channel Tunnel Rail Link – İngiltere
Dublin Port Tunnel – İrlanda
Tunnel Singapore – Singapur
Nanjing Jiuhuashan Tunnel – Çin
Road Tunnel Madrid – İspanya
Algiers Metro – Cezayir
Groene Hart Tunnel – Hollanda
Benelux Tunnel – Hollanda
Channel Tunnel Rail Link – İngiltere
Dublin Port Tunnel – İrlanda
Tunnel Singapore – Singapur
Nanjing Jiuhuashan Tunnel – Çin
Road Tunnel Madrid – İspanya