After the 2006 Rolli recognition by UNESCO as part of the world heritage, Genova municipality started in 2009 Rolli Days, dedicated to the free visit of public and private buildings.
The number of buildings open for the visit has constantly increased in time, and lately even palaces not originally belonging to the Rolli system (Genoa University historical building, for instance), summer villas located in the outskirt of Genoa and churches have been included in the tour.