The museum building is located on the banks of the Wisłoka river in the western part of Mielec. It is surrounded by a park, which is currently being revitalized with new plantings. The Oborski Manor has an interesting two-body structure, consisting of an old, ground-floor house from the early 19th century and a newer front structure completed in 1905. A distinctive feature of this newer part is the entrance embedded in a two-story square tower with a balcony shading the main door. The building fits into the concept of an urban villa in a garden, popular at that time. The museum showcases Mielec's history from prehistoric times, through paintings and portraits of local artists, to a reconstruction of the typical bourgeois house interior from the 19th and 20th centuries.