World Architecture Day © Dmitry Rukhlenko/Alamy
In Belgium"s largest city, the Antwerp Port Authority is housed in a century-old building that sports a gleaming new addition. The update to the building, known as the Port House, was the vision that Zaha Hadid created with her team at Zaha Hadid Architects, which won a 2009 competition to build the new structure around a 1911 firehouse. Work was completed in 2016, the same year the famed architect died. The expansion is intended to resemble the hull of a sailing ship with a protruding bow glimmering with diamonds, recalling Antwerp"s longtime trade in precious stones.