Why is Matera so special?

Could you tell me why Matera, this ancient city nestled in the southern Italian region of Basilicata, holds such a unique and special place in the hearts of many? What is it about its rugged terrain, labyrinthine caves, and rich cultural heritage that makes it stand out among other destinations? Is it the captivating stories of its past that linger in every corner, or the warmth and hospitality of its people that make visitors feel right at home? I'm intrigued to learn more about what truly sets Matera apart.