Seikan Tunnel Description, History, Construction, & Facts

Seikan Tunnel - Wikipedia

Seikan tunnel - The Longest Underwater Rail Tunnel

2. Get the Shinkansen to run through the undersea tunnel.

Water, Free Full-Text

How Tunnels Work

Seikan Tunnel – Japan - Atlas Obscura

Japan Atlas: Seikan Submarine Tunnel

The Great Era of Underwater Tunneling - The Atlantic

Seikan Tunnel, Japan - Railway Technology

The World's Longest Under Water Train Tunnel Built - video Dailymotion

The world's longest underwater tunnel that's an insane 33 miles long and cost £5.6b, World, News

Japan Travel Reports: Tohoku Series: Seikan Tunnel Museum (一般財団法人 青函トンネル記念館)