Once a bustling fishing village settled in 1917, Djúpavík became home to the biggest concrete structure in Iceland, an impressive herring processing factory that opened in 1935. But when the locals fished up the last of the herring in the late 1940s, the factory folded too.

Nowadays, you can join guided tours through the giant building. I've never been inside, but I've heard great stories about it. You can book the tour at Hotel Djúpavík.