We all know the moon’s made of green cheese, but what’s the deal with the pie in the sky? The idiom pie in the sky, referring to something that’s pleasant to imagine but unattainable, comes from an early 20th century song called...
Ever notice how you can sing the lyrics of “Amazing Grace” to the theme from “Gilligan’s Island”—or for that matter, to “The House of the Rising Sun”? Turns out there are many more examples of this. Is there...

