18th and 19th centuries,Piadena shared the fate of the rest of the Lombard territory, from the first Habsburg rule, to the advent of Napoleon, andt he establishment of the Lombard-Venetian Kingdom. Significant was the contribution made by the people of Piadena to the revolutionary uprisings of the Risorgimento. Notable historic buildings are the former 17th-century Gerolimini convent, home of the town hall, and the 18th-century Magio Trecchi villa, where a nursing home for the elderly is in operation. In the town hall, which occupies the former Gerolimini convent, there is an archaeological museum displaying numerous prehistoric, Celtic and Roman artifacts. As of January 1, 2019, it merged with the municipality of Drizzona to form the new municipality of Piadena Drizzona. Symbols By Presidential Decree of June 26, 2008, Piadena received its coat of arms and flag."Coat of arms in silver, to the two covered towers, gules, bricked and windowed in black, united by the bridge in gules, bricked in black, with convex scaffolding, founded on the plain in azure, floating in silver, these towers accompanied at the point of honor by the waving bison in pole, azure, crowned in the ancient style in gold, engulfing the putto of flesh, hairy in black, with arms outstretched. Under the shield, on a bifid, fluttering list of silver, the motto, in capital letters of black, PROSPERA ET PROBATA PLATINA. Outward ornaments from common."The municipal coat of arms is composed of some significant emblems of local history. The two masonry towers joined by a bridge over the river allude either to the features of the tower named Salvaterra, which was to be located on the Delmona Canal on the road to San Giovanni in Croce, or they allude to the two distinct defensive towers in the area, namely the Salvaterra Tower and the tower that was to stand near the Oglio River. Above the wall structure appears the unique Visconti coat of arms of a snake swallowing a man, a symbol of the victorious war exploits of the noble Visconti family. Under the coat of arms appears the name of the municipality in the ancient form of "Platina." The gonfalone was a white drape with an azure border. World heritage site It is home to one or more prehistoric pile-dwelling (or stilt house) settlements that are part of the Prehistoric Pile dwellings around the Alps UNESCO World Heritage Site. Culture Events Fiera settembrina Festa