The Switzerland Expansion Add-on for Ticket to Ride has 6 achievements.
On Switzerland, win while connecting all four surrounding countries
On Switzerland, complete 18 Tickets in one game
On Switzerland, connect France to Osterreich using only tunnels, but without using Locomotive cards
On Switzerland, win a 2-player game without failing any Tickets
On Switzerland, win having drawn 5 Tickets that were already complete. They can be non-consecutive
On Switzerland, in a 3-player game, win by completing 8+ more Tickets than both opponents