Mahoutsukai no Yome, Kino no Tabi: The Beautiful World - The Animated Series Recommendations
They both have beautiful world building, and gorgeous, vibrant animation. Both tend to be quite philosophical at times (of course, Kino no Tabi more than Mahoutsukai), and have a very serene feel.
Even though they're different in a lot of ways, they share the same sort of atmosphere, and are both about seeing the beauty in a confusing and often painful world.
There is a lot more character development and overall plot in Mahoutsukai (Kino no Tabi is episodic), but if you like one, I'd encourage you to give the other a try. XD