The Seikan Tunnel is indeed the world's longest underwater rail tunnel, located in Japan.
It stretches 23.3 kilometers (14.4 miles) beneath the sea, connecting the Japanese islands of Honshu and Hokkaido.
The tunnel was completed in 1988, and it was a remarkable engineering feat at the time of its construction.
It remains a vital transportation link, with high-speed trains traveling through it, including the Shinkansen.
The Seikan Tunnel is one of Japan's key infrastructural wonders and is renowned for its immense length and the challenges it posed during its construction, as it had to be built undersea in difficult geological conditions.
It stretches 23.3 kilometers (14.4 miles) beneath the sea, connecting the Japanese islands of Honshu and Hokkaido.
The tunnel was completed in 1988, and it was a remarkable engineering feat at the time of its construction.
It remains a vital transportation link, with high-speed trains traveling through it, including the Shinkansen.
The Seikan Tunnel is one of Japan's key infrastructural wonders and is renowned for its immense length and the challenges it posed during its construction, as it had to be built undersea in difficult geological conditions.
The Seikan Tunnel is indeed the world's longest underwater rail tunnel, located in Japan.
It stretches 23.3 kilometers (14.4 miles) beneath the sea, connecting the Japanese islands of Honshu and Hokkaido.
The tunnel was completed in 1988, and it was a remarkable engineering feat at the time of its construction.
It remains a vital transportation link, with high-speed trains traveling through it, including the Shinkansen.
The Seikan Tunnel is one of Japan's key infrastructural wonders and is renowned for its immense length and the challenges it posed during its construction, as it had to be built undersea in difficult geological conditions.
