The museum consists of two historic Baroque houses from the 16th and 18th century on the Old Market. They exhibit artefacts connected with the history of Włocławek and Poland from archaeological excavations to Liberation of Włocławek in 1945 including the Bowl of Włocławek (10th century) and elements of knights armour (14th and 15th century), objects related to the economic life of Włocławek (16th and 17th century), measures and weights, treasures with coins from the 12th to 18th centuries, pharmaceutics from the 19th and 20th centuries, memorabilia of big industry in the 19th century, memorabilia of the Fire Department, sports trophies, uniforms, firearms, weapons, photographs and the archives of national uprisings, Polish-Soviet War (1919-1921), interwar decades, and World War I and World War II, models of non-existent buildings (city hall, St. Wojciech Church and St. Mikołaj Orthodox Church) and the reconstruction of a photo atelier.
