Mogno is most noted for its modern marble and granite Church of San Giovanni Battista (St. John the Baptist), designed by Ticinese architect Mario Botta (born 1943). The church was erected between 1994 and 1996 on the site of its 350-year old predecessor, which was levelled by an avalanche in 1986. This catastrophe also claimed several of the homes in the village, although luckily no-one was injured in this event.
The village is also home to one of few remaining Ticinese watermills.