Jay Jay the Jet Plane
A Trip To Skylandia
S1 E202:
Jay Jay is uncertain whether castles in the sky exist or not, but all this suddenly comes to him when he hits a windspout and ends up in the sky high kingdom of Skylandia, where the subjects refuse to believe Tarrytown exists below. Jay Jay tries to convince the subjects that you don't have to see something unusual to believe it exists, all while learning the same.