Delaware Aqueduct (USA): Stretching 85 miles, it supplies water to New York City, the world's longest tunnel.
Yulhyeon Tunnel (South Korea): Spanning 50.3 miles, it's the world's longest railway tunnel, enhancing transportation efficiency.
Gotthard Base Tunnel (Switzerland): Extending 35.5 miles, it's the longest rail and deepest traffic tunnel globally, revolutionizing European transport.
Seikan Tunnel (Japan): Covering 33.5 miles, it connects Honshu and Hokkaido islands, accommodating both trains and vehicles.
Channel Tunnel (UKFrance): At 31.4 miles, it's the longest undersea tunnel, linking England and France seamlessly.
Yulhyeon Tunnel (South Korea): Spanning 30.3 miles, it serves as a vital transportation link beneath the mountains.
Songshan Lake Tunnel (China): Stretching 18 miles, it eases congestion in Dongguan, enhancing regional connectivity and development.
Lærdal Tunnel (Norway): Covering 15.3 miles, it's the world's longest road tunnel, providing a scenic route through mountains.