Avatar au: for whatever reason (Ursa takes off with Zuko to find somewhere safe, Iroh takes him around the world, he gets banished to the pole, etc) Zuko comes to hang out at the South Pole and becomes unlikely friends with the water kids. It obviously starts out rocky, but gets there eventually.
Avatar AU - A world where the South Pole didn’t fold and Princess Katara or Prince Sokka are being married off to Prince Zuko or Princess Azula for an allience, but before their families can arrange any marriage the four are kidnapped so that the alliance doesn’t happen and they end up all the way in Ba Sing Se and have to travel home together.
The ice breaker "City of New York" sails from New York Harbor, September 6, 1928, captained by Commander Richard Byrd, at the start of its 13,000 mile voyage to Antarctica.