You’ve likely seen it many times elsewhere, but I just can’t let anyone miss out on the carefully constructed Fifth Avenue apartment featured in the New York Times. 18 clues cleverly built into the furniture and decorative elements of the home created a trail of puzzles for the inhabitants. The finale led to the poem that had triggered the entire project. The owners had requested it be hidden in a wall somewhere. If you don’t have time to read the article, take a look through the photo gallery.