The Historical Museum of Ioannina Ch. Nikolaou is housed in the listed mansion located on Neoptolemou Str. 9 opposite the main gate of the castle and erected in 1900. His collections are the result of a multi-year study, research and search for historical objects with high technical aesthetic and semantic characteristics. The architecture of the building with the loggia and the traditional wooden ladder harmoniously harmonizes with the exhibits, depicts the style of the season, composing a complete picture, and offers a unique atmospheric experience for the visitor.