The O.K. Center for Contemporary Art

This former monastery now houses the civic museum, with rotating exhibits focused on regional history and ecology.

Designed according to drawings by Pietro Francesco Carlone, the cathedral was built between 1669 and 1678. It was the cathedral church of the diocese of Linz from 1785-1909. The single-nave Baroque church has lateral chapels and galleries, as well as a closed choir and stucco work by J.P. Spaz and G.B. Mazza. The marble high altar is by Colomba and Barberini with a picture by Antonio Bellucci. The Aloisian altar picture is by Bartolomeo Altomonte. The choir pews originate from the former monastery church in Garsten, while the organ by Franz Xaver Krismann derives from Engelzell monastery. From 1856-1868 Anton Bruckner served as the cathedral organist.

The bishop's residence is the most important secular Baroque building in the city. Commissioned by Kremsmünster Monastery (1721–26), it was built by Michael Pruckmayr according to plans by Jakob Prandtauer, who was also responsible for the monasteries in Melk and St. Florian. The impressive lattice gate on the staircase is by Valentin Hoffmann (1727).

A one-room museum dedicated to the history of dentistry, from the 17th century until the present.

The museum has a large collection of modern and contemporary art, with rotating special exhibits of works by Upper Austrians.

A branch of the Nordico Museum with displays dedicated to the history of Linz and its famous residents.