This monumental castle, which has belonged to the city of Lienz since 1942, is one of the main attractions in East Tyrol, and currently houses the Lienz City Museum, which boasts the largest collection of works by the East Tyrolean painter Albin Egger-Lienz.

The stories of Heinfels Castle are told through modern media, film and audio installations, as well as digital animations. The awe-inspiring masonry is also examined, and visitors can learn about the purposes of the individual parts of the castle.