Beauty in Simplicity and Solitude in "Piranesi"

Susanna Clarke's "Piranesi" has held popularity for a few years now and has been dubbed a "modern classic." What makes it classic? Readers wander "The House" with lovable Piranesi while he figures out the meaning of his life and uncovers some life-changing secrets. All the while, it teaches lessons on life, loneliness, simplicity and change.