Here’s a 360 degree video of the gotthard base tunnel: https://youtu.be/i0kdT5oEN2Q https://youtu.be/i0kdT5oEN2Q In contrast to the Seattle project there are tw

Here’s a 360 degree video of the gotthard base tunnel: https://youtu.be/i0kdT5oEN2Q https://youtu.be/i0kdT5oEN2Q In contrast to the Seattle project there are two tunnels running side by side. More information: https://en.m.wikipedia.org/wiki/Gotthard_Base_Tunnel https://en.m.wikipedia.org/wiki/Gotthard_Base_Tunnel