Operation of a historic castle open to the public with guided tours and permanent exhibitions dedicated to the history of the building and important personalities. It includes cultural and social events, exhibitions and programmes for visitors.

The Archa building on the grounds of the Gayer Barracks is the newly revitalized home of the Museum of Eastern Bohemia in Hradec Králové. The building serves as the headquarters of the Hradec Králové Region Center for Creative Museology, and a new natural history and archaeological exhibition will open there in the future.