Mona Lisa
The painting is thought to be a portrait of Lisa Gherardini, the wife of Francesco del Giocondo, and is in oil on a white Lombardy poplar panel. It had been believed to have been painted between 1503 and 1506; however, Leonardo may have continued working on it as late as 1517. Recent academic work suggests that it would not have been started before 1513. It was acquired by King Francis I of France and is now the property of the French Republic, on permanent display at the Louvre Museum in Paris since 1797.
Bobbio
Bobbio is located in the heart of Val Trebbia, a valley described by Ernest Hemingway as "the most beautiful in the world". The town is nestled at the foot of Monte Penice, above sea level, on the left bank of the river Trebbia.
Its history is identified with the Abbey founded in 614 by St. Columbanus an Irish missionary, and as a result it became one of the principal centers of religious culture in medieval Italy, home to a famous library and basilica. The possessions of the abbey in the Lombard and Carolingian eras spanned the north of Italy.
Bobbio is a coveted tourist destination known for its history of art and culture, for nature lovers, and for its ancient monuments. It has from antiquity been a crossroads between different cultures such as the Piacentine, Ligurian, Piedmontese, and Pavian.
The historical center and heart of the city has maintained the characteristics of the medieval village.
One town landmark, the Ponte Vecchio, called "Ponte Gobbo" (Hunchback Bridge), also known as the "Devil's Bridge", is an ancient stone bridge of Roman origin, which crosses the river Trebbia in eleven irregular arches. 
The Shrine of Our Lady of Penice, located on top of Monte Penice, dominates the landscape, and is also popular in winter for its ski resorts.
Historians have speculated that Bobbio was the town in which Leonardo da Vinci completed the Mona Lisa.
Carla Glori in December 2011 has published her book "Enigma Leonardo:decifrazioni e scoperte" where the background of the portrait has been identified as the landscape of Bobbio.