I imagined the city of Venice in a century’s time, on a plane beneath its current canal-surface level. From this perspective, the new, bioluminescent city spreads out beneath its historic buildings, providing new foundations and protecting it from the risk of flooding. Glass tiles, supported by a three-dimensional structure, cover all the museum city’s squares. If people strolling around look downwards, they will be able to see the new city below. If they observe at an oblique angle, they will see the current pavement of the city and the reflection of its historic buildings. Due to its enclosed nature, the subterranean city protects its inhabitants from extreme weather, providing the most comfortable of microclimates and a stable, controlled ecosystem.