The INFN has four National Laboratories, i.e. large facilities in which research on frontier physics is carried out and which welcome researchers from all over the world: the National Laboratories of the South (Catania), the National Laboratories of Frascati (Rome), the Gran Sasso National Laboratories (L’Aquila) and the National Laboratories of Legnaro (Padua). Each laboratory organises its own tour programmes.

• Laboratori Nazionali di Frascati
• Laboratori Nazionali del Gran Sasso
• Laboratori Nazionali di Legnaro
• Laboratori Nazionali del Sud