The design shows a decorative detail from the facade of the ‘Hotel Van Eetvelde’, an iconic town house in Brussels which has been designed by the Belgian art nouveau architect Victor Horta and has been recognized as Unesco World Heritage. The curved, asymmetrical lines of this decorative detail reflect the characteristic nature-inspired style of the art nouveau movement. This detail fills up the bottom half of the piece, leaving a vacant space on the upper half, which is filled with the description ‘ART NOUVEAU’. At the far right are the initials of the designer Iris Bruijns located. As the Royal Dutch Mint will strike the coins, the mintmark of Utrecht, a mercury staff is located on the far left together with the Belgian mint director mintmark, an aster flower in front of an Erlenmeyer flask, the country code BE and the year mark 2023. The coin’s outer ring bears the 12 stars of the European flag. (Source: ecb.europa.eu)