The Null Stern Hotel in Switzerland takes the concept of minimalism to a whole new level. This hotel has no walls, no roof, and no bathroom. Guests sleep in a comfortable bed placed in the middle of nature, with stunning views of the Swiss countryside. The hotel provides a personal butler who takes care of guests' needs and serves breakfast in bed. This unique hotel offers a truly immersive experience in nature, allowing guests to disconnect from the modern world and embrace the simplicity of life.