"Design a futuristic floating house situated in water, without any trees in the background. The house should prominently feature a pyramid shape, inspired by the pyramids of Egypt, and include elegant columns similar to those crafted by the civilization of Petra. It should have an observatory for stargazing, showcasing its unique architectural form. The interior should blend modern minimalism with natural materials, creating a serene atmosphere. Construct the exterior from elegant marble with a textured finish, highlighting the pyramid shape, and incorporate golden rod window frames along with vibrant, watery tones in shades of teal, aquamarine, and deep blue. Ensure the house is the focal point, partially submerged in the vast ocean under clear blue skies. Create a tranquil atmosphere that promotes relaxation and a deep connection to nature, all in 4K high resolution, emphasizing the beauty and elegance of the materials while showcasing the distinct pyramidal design and Petra-inspired columns."