Tunnel

smuggling tunnel Tunnel des Tuileries Operation Gold Amur River Tunnel Aberdeen Tunnel Albert Park tunnels Anchor telephone exchange Barcelona Metro line 13 South-to-North Water Diversion Eastern Route Crossing Yellow Tunnel Blowhole Diversion Tunnel Burro Schmidt Tunnel Busby's Bore canal tunnel Cheung Tsing Tunnel Columbia University tunnels Cromwell Curve Delegate River Diversion Tunnel Discovery Bay Tunnel Dyer Avenue Fawley Tunnel bridge–tunnel Gilbert Heathcote's tunnel Glenbrook Tunnel Great Haigh Sough Haughtons Flat Diversion Tunnel Heathrow Airside Road Tunnel Hockley Tunnels La Mina Indigo Tunnel John H. Wilson Tunnels Kai Tak Tunnel Kessler Tunnel Kingsway Tunnel Park Tunnel Laurel Hill Tunnel Cramer Tunnel Limehouse Link tunnel Southern Tunnel Logans Ferry Mine Tunnel Lowry Hill Tunnel Lytle Tunnel Manchester International Depot Mitchell Point Tunnel Mount Victoria Tunnel Acton Tunnel Nam Wan Tunnel Griffith Tunnel New York City water supply system Nu‘uanu Pali Tunnels Port Miami Tunnel