Yesterday on Colossal a paper plane was featured. Specifically a 1:60-Scale Boeing 777 Built Entirely from Paper Manilla Folders by Luca Iaconi-Stewart. The attention to detail is phenomenal, you really should go click on the link for the story. To get an idea of how meticulous the model is watch the video below. It is almost a working model of the engine.
It is simply incredible.