In the heart of the Po Valley, the province of Lodi has an agricultural heartland but also gives visitors the opportunity to visit the castles and shrines, the real reason of the charm of this area. The plain is sweet and smooth, just interrupted occasionally by rivers. Formed from land created by the flooding of the river Adda, the Lodi plain is fertile and has a clay substrate, an essential ingredient for the production of ceramics featuring local crafts. The territory is home to several protected areas and nature parks, the largest of which is the Adda Nord Regional Park, which is shared with the province of Cremona. The characteristic vegetation consists of poplars; the landscape is characterized by the presence of wetlands and marshes, home to many species of animals and birds. Marshy but also dotted with old mills and houses, is the Natural Reserve of Monticchie. Two other green areas are the Boscone Seal and Fish Park Paradise. Lodi is one of the provinces of Lombardy and is located in the Lower Po Valley, on the right bank of the Adda River, on the border with Emilia Romagna. Lodi has about 42,000 inhabitants and is an autonomous province since 1992, previously appeared in the province of Milan, which is about 40 km away. The territory of the province of Lodi is mostly flat and the predominant activities are agriculture and livestock. In Roman times, it was called Lodi Laus Pompeia perhaps in honor of the console Cneo Pompey Strabo. Laus Pompeia corresponds to the current Lodivecchio a few miles from Lodi and, after being destroyed by the Milanese, was rebuilt by Frederick Barbarossa in 1158. In 1335 it was conquered and united by the Visconti in Milan, which followed the events: the domain before the Spaniards, then the Austrians, until the Napoleonic invasion.