New York’s urban architect recyclers, LOT-EK, have recently designed a library in Guadalajara made entirely of refurbished airplane fuselages. Apparently when airplanes are put to rest, most of their parts are easily recycled. However, according to Noticias Arquitectura, the fuselages are the only parts that are rarely reused, because “the cost of its demolition exceeds the profit of aluminum resale.” Because of this, there are a ton of discarded fuselages strewn all over deserts of the western states. Boeing 727 and 737 are the best-selling commercial planes and therefore the most common fuselage types in these graveyards. The fuselages are sold completely stripped, and at a ridicously cheap price - lending themselves to a great building material.

from comments :

I work on aircraft for a living and they tend to allow water to leak into them when unpressurised. This has much to to with the fact that they are built to slightly bend in response to turbulence. Most of this leaking occurs arount the rivets that hold the skin on and the structure together. As such, the engineers will definitely have some work on their hands trying to seal thousands of rivets per aircraft. This could translate to millions of rivets for the entire project adding to the overall cost. I love the idea though and wish they would build it in my town.