The Natural History Museum is located in the 16th Century Palazzo Pompei. Presented to the city by Count Alessandro Pompei in 1854, it became a centre for scientific and ethnographic collections, and for Renaissance art collections. By 1936, due to space limitations, the art collections were transferred to other sites. There are 19 rooms displaying over 2 million examples of the world’s animals, plants, geology, palaeontology and prehistory. One of the major attractions is the fossilised fish from Bolca, contained in a weir which is 45 million years old. There are also the finds from the lake-dwelling on Lake Garda.