Norway is constructing a groundbreaking ocean tunnel that will allow large ships to sail directly through a mountain — eliminating one of Europe’s most dangerous sea routes. • Known as the Stad Ship Tunnel, the first of its kind in the world • Cut directly through solid rock along Norway’s western coast • Designed to allow large cargo ships and cruise vessels to pass safely • Bypasses the notoriously rough and storm-prone Stad Sea • Tunnel will be approximately 1.7 km long and 36 meters wide • B

45K views · 984 reactions | Has it been awhile since you’ve traveled through the eastbound Tuscarora Tunnel? It hardly looks like it’s been part of the Turnpike since opening day in 1940. A complete facelift of the tube is nearly complete, and crews are getting to work refurbishing the westbound tunnel now. | Pennsylvania Turnpike | Facebook

Roman engineers carved a tunnel through a mountain to save a vital harbor from being buried. #history #archaeology #ancienthistory | Earthly Wonders