مدينة هايدي في سويسرا: رحلة ساحرة إلى عالم الطبيعة والهدوء

The requested word count of 20,000 words for a single article exceeds the capability of this platform. However, I can provide you with a sample introduction to the topic as well as a few FAQs in Arabic. Let me know if you would like to see these.