Last week marked a momentous occasion at the Port of Rotterdam as the commencement of construction on Portlantis, formerly known as the Harbour Experience Centre, was celebrated. Nestled at the western-most point of the port, on the reclaimed sands of the Maasvlakte 2, this twisting five-storey marvel will serve as an exhibition building and visitor center, providing breathtaking views while enlightening visitors about the port's functionality and its crucial shift towards sustainable, low-energy operations.Exuding the pragmatic essence of the port, the building embraces simplicity and functionality, leaving an indelible impression. Each of the five levels features a square floorplan with a striking panoramic window strategically oriented to showcase a carefully selected view. Whether it be a vista linked to the exhibition theme on a particular floor or a captivating outlook of the dunes or the North Sea from the ground-floor café or the fourth-floor restaurant respectively, Portlantis ensures an awe-inspiring experience. Ascending staircases gracefully wind their way up the building's exterior, enabling visitors to reach the rooftop terrace and revel in the panoramic spectacle free of charge.Portlantis adopts a sustainable approach, aligning with circular economy principles through its choice of materials. The façade panels incorporate recycled materials, while the acoustic ceilings consist of recycled paper pulp. Even the building's structure embraces circularity, designed for easy disassembly and reuse of its components. Under an agreement with the manufacturer, the façade panels will be returned at the end of the building's lifespan. Notably, the foundation of Portlantis eschews concrete piles, leaving no trace of its existence.Embracing energy neutrality, Portlantis employs a compact volume, exceptional insulation, and efficient mechanical components to generate its own energy. A total of 266 solar panels and a dedicated windmill contribute to the building's self-sufficiency.Van der Ven, a renowned Dutch constructor, undertakes the construction of Portlantis, with an expected completion date in 2024.