They say truth is stranger than fiction--but sometimes truth inspires fiction, as is the case with these 10 venues that actually exist (or, in the case of the Sands Point, N.Y., mansion that inspired F. Scott Fitzgerald, existed--the house has been demolished). Some are instantly familiar and recognizable, like Robert Frost's New Hampshire "Mending Wall," a low, humble stone fence, while others are surprising, like the Italian cliffhanging city of Narni, which inspired C.S. Lewis's magical land of Narnia. However, with any of these famed places, we're sure that the most surprising thing about them would be... their price tags.