Vágatunnilin
The 217th longest tunnel in the world
The Vágatunnilin (Vágar Tunnel) is a 4,940 metres (16, 210 ft) long undersea road tunnel in the Faroe Islands. It goes under Vestmannasund strait and connects the two islands of Streymoy and Vágar. The tunnel was the first sub-sea tunnel in the Faroe Islands, and connects the capital of Tórshavn on Streymoy with Vágar Airport on Vágar.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).