Here's a wonderfully beautiful animated short called Metro created by Jacob Wyatt. It's a simple story about a little girl trying to navigate her way through the subway and onto a train. From out of nowhere a fox steals her ticket and she ends up chasing him through the subway vents and into a secret magical world between the underground subway and the world above. It's a great short that I think you'll enjoy. Check it out, and tell us what you like about it!