The Nordic Countries Add-on for Ticket to Ride has 5 achievements.
Win all achievements for the Nordic Countries map
Connect Arhus to Honningsvag with 24 trains and win the game
Win while connecting together the 7 cities north of the Arctic Circle: Narvik, Kiruna, Rovaniemi, Tromso, Kirkenes, Murmansk, Honningsvag
Win without using any ferries
Win with the Murmansk/Lieksa road