The castle of Linz is the heart of the historical center of Linz. In the 17th century, Rudolf II had the castle built, which today is home to the Upper Austrian provincial Museum. The south wing was destroyed in the City Fire of 1800, and was rebuilt in modern glass-and-steel architecture for the Capital of Culture year 2009. It now constitute the largest universal museum in Austria - the Castle Museum. The wings of Linz Castle contain the history of culture collections of the Upper Austrian Provincial Museum. The permanent exhibitions present a walk through the artistic and cultural history of Upper Austria from the Neolithic Age up to the 20th century. The new South Wing contains the permanent exhibitions on nature and technology in Upper Austria. There is a continuous programme of special exhibitions. https://www.linztourismus.at/en/leisure/discover-linz/worth-seeing/historical-sites/linz-castle/

Voestalpine Stahlwelt (steel world) in Linz presents a globally unique adventure world dedicated to steel. Austria's largest industrial site invites you to discover the latest technologies for producing steel. This interactive exhibition uses multimedia to show you what lies behind the Austrian group. The latest technologies and innovative production processes of Linz steel are presented, right through to the finished product. Experience spherical production sounds from the Linz site, the play of light and exhibits to touch. The construction of voestalpine Stahlwelt itself is also spectacular. The exhibition takes you through a giant crucible, a replica of the one used to produce steel. Oversized chrome balls, hanging from the middle of the building's ceiling, are not only an impressive eye-catcher, but also partially integrated into the exhibition. https://www.linztourismus.at/en/leisure/discover-linz/worth-seeing/top10/voestalpine-stahlwelt/