In close collaboration with designers, craftsmen and architects, the young Swiss label, OKRO, develops objects and furniture. OKRO explores the limits of what is possible and impossible, of usefulness and beauty, of being an end in itself and a space in between of history and duration. In the gallery OKRO, new objects are shown in regular exhibitions.

The gallery's programme reflects the many possibilities for contemporary art as well as the different possible media such as photography, painting, drawing, sculpture and object art, installation, video and new media. Its focus lies on presenting Swiss contemporary  art.

Grottenstein is a cave castle of undetermined age at the foot of a rockface on Calanda mountain. A 20-metre-long section of wall remains to this day of the castle built under a rocky bluff.

The Renaissance castle at the foot of the Calanda is the highlight of Haldenstein. When the roses flower in the spring, the castle garden is a visual and olfactory feast.
Haldenstein Castle was built in the 16th century and is included in Switzerland's inventory of art and cultural-historical protected items. The public castle gardens are one of the most beautiful attractions in the Chur region. Each year, these park-like gardens, surrounded by an impressive wall crowned with battlements, and the beauty of the blooms, bring joy to the hearts of the many visitors.