I was lucky recently to fly to Boston in the USA, with a connecting flight in Rekyavik, Iceland. While flying over the Eurasia-America plate boundary into Rekyavik airport was pretty impressive, with cracks in the ground visible from the plane as the continents slowly tear apart, the best part was that the route from Iceland to New England takes you over both sides of Greenland.
From the air, you can see glaciers flowing into the ocean, with bright blue meltwater lakes forming on top of the ice streams, the ice cap itself, and the slightly more inhabitable land on the western coast. It was a truly magical experience, unlike anything I’ve seen before, and a complete surprise. If you are flying Icelandair along this route in the future, make sure to sit on the right hand side of the plane to get the best views.