Nestled within the verdant grounds of KURKKU FIELDS, an organic farm and cultural hub championing sustainable living in Chiba, Japan, the “Library in the Earth” by Tokyo-based architectural practice Hiroshi Nakamura & NAP feels like a glimpse into a futuristic hobbit-land. Built seamlessly into a small hillside thanks to a number of ingenious structural solutions, the library vanishes into the landscape, its lush, cascading lawn blending effortlessly with the surrounding terrain.