Serlachius is an art museum complex in Mänttä, made up of Serlachius Kartano (Manor), Pääkonttori (Head Office) and Taidesauna (Art Sauna).
With Johku, they sell admission tickets, public and group guided tours including dramatized tours, public sessions at Taidesauna, art menus at Restaurant Gösta, packages that combine a train journey with a transfer, art trips to Mänttä, and books, art prints and design products from the museum shop. The same shop also sells gift cards.