De Venco Campus in the Dutch town of Eersel is an international knowledge, research and innovation centre for poultry farming as well as the most sustainable building in Europe. This black, egg-shaped building has been integrated into the landscape in an unusual way. A perfect symbiosis of four different disciplines ensured a landscape design in which there is space for ecological measures and optimum experience of nature. So the design included local planting, nature-friendly banks, a water purification system and measures for butterflies, bees, kingfishers, nightjars, bats and owls.