Why some objects stored in dark places away from sunlight?

Some objects are stored in dark places away from sunlight to protect them from damage caused by UV radiation and heat. Sunlight can cause fading, discoloration, and deterioration of materials like paper, fabrics, and certain plastics. Additionally, dark environments help to maintain stable temperature and humidity levels, which further preserves the integrity of sensitive items. This practice is especially important for valuable artifacts, artworks, and historical documents.