If you're intrigued by research facilities, indulge your intellect by heading to Carlo Besta Neurological Institute.
This scientific research center, located in the leafy neighborhood of Citta Studi, won't cost you a cent to visit. On the lookout for more sightseeing fun? Cathedral of Milan, Piazza del Duomo and Galleria Vittorio Emanuele II are nearby and also worth checking out.