Tunnels offer convenient passageways, creating a unique feel that leaves a strong impression on visitors.
The Gotthard Base Tunnel (Switzerland) is the longest and deepest railway tunnel in the world, located beneath the Alps in Switzerland. The concept for the tunnel was developed in 1947, but construction did not begin until 1999. Upon completion, the Gotthard Base Tunnel secured its position as the longest railway tunnel in the world. (Photo: Railway Technology).
The Seikan Tunnel (Japan) connects the islands of Honshu and Hokkaido. This railway tunnel allows residents to avoid dependence on boats in the often turbulent waters. (Photo: FUN! JAPAN).
The Channel Tunnel (United Kingdom) runs beneath the English Channel. The Channel Tunnel is recognized as the longest underwater tunnel in the world and is considered one of the greatest engineering achievements of the 20th century. (Photo: France Today).
The Yulhyeon Tunnel (South Korea) is part of the Suseo High-Speed Railway, connecting the cities of Seoul and Pyeongtaek. Yulhyeon Tunnel is currently the fourth longest railway tunnel in the world. (Photo: TunnelTalk.com).
The Lötschberg Tunnel (Switzerland) has become one of the most scenic routes in Switzerland. With its high-speed travel, the Lötschberg Tunnel makes commuting more convenient for travelers. (Photo: iStock).
The New Guanjiao Tunnel (China) is part of the Qinghai-Tibet Railway, passing through the Guanjiao Mountains in Qinghai Province, China. Construction of the tunnel began in 2004, and it opened for traffic in April 2014. (Photo: Wikipedia).
The Guadarrama Tunnel (Spain) is the largest tunnel in Spain, running through the Sierra de Guadarrama mountain range in central Spain. Additionally, the tunnel facilitates easier travel for visitors. (Photo: Wikipedia).
The Simplon Tunnel (Switzerland) connects Brig (Switzerland) and Domodossola (Italy) through the Alps. The Simplon Tunnel consists of two single-track tunnels that were constructed over approximately 15 years. (Photo: Structurae).
The Pir Panjal Railway Tunnel (India) is the longest railway tunnel in India. A notable feature of this tunnel is its high waterproofing capability, equipped with a fire-fighting system throughout its length. (Photo: The Economic Times).
The Arlberg Tunnel (Austria), completed in 1978, surpassed the Mont Blanc Tunnel between France and Italy, becoming the longest road tunnel in the world. Furthermore, the tunnel is designed to accommodate over 1,800 vehicles, providing ample space for transportation. (Photo: MeinBezirk.at).
