Today in the 3000-square-meter multipurpose building approximately 400 events are held annually. Museums Since 1885, the has housed the Municipal Museum with a large collection (about 5000 exhibits) of the cultural history of the city and district of Rosenheim, from the prehistory and early history and Roman times to the recent city history in the 20th century. It is one of the most important regional history collections in South East Upper Bavaria. The Inn Museum houses the hydraulic engineering and marine technology collection of the Rosenheim Water Management Office and is located in the historic river master's Bruckbaustadel at the Inn Bridge. With many original objects, the museum displays the Inn Shipping Company, the source of Rosenheim's prosperity in the Middle Ages, in the past centuries. In addition, the museum provides facts about the river landscape and river engineering, geology, settlement history, marine engineering, bridge design and the development of waterways. The Wood technology Museum was established in 1990 in the listed Ellmaierhaus. It is housed on the first floor, which is accessed via the so-called Jacob's ladder. Over 400 square meters of exhibition space this unique museum displays wood as a raw material, its importance and processing past and present, which is closely related to the timber town of Rosenheim and its training centres for wood occupations. The exhibition shows not only the end products, but also their production and the necessary tools. Regular special exhibitions complete the offer of the Wood technology Museum. The Municipal Gallery of 1935–1937 was built by German Bestelmeyer. Every year, six art exhibitions are held here. In addition to contemporary art, also exhibitions of works from the 19th and 20th century are held. A thematic focus is the art from the region and the Munich School. The is an internationally renowned exhibition centre with annually changing exhibitions in the former railway locomotive round house. The brine pump house is one of the few monuments in the city which recall time from 1810 to 1958 of Rosenheim's brine industry. As part of the National Exposition salt makes history, the city renovated the historic listed building and set up an exhibition room about Rosenheim's brine history. Admission is only possible with city guides or by agreement with the Metropolitan Museum. The museum houses various exhibits, on the one hand the history of the Klepper folding boat, coats and tents. On the other hand, it is