In the village of Beli plast along the road Kardzhali - Haskovo you can see the giant Stone mushrooms. Its area is about 30 acres. They are high up to 2.50 m with a circumference of the "punch" up to 8 m, and of the "sponges" up to 10 m. The "Punches" are pale pink with black dots and the "sponges" - pale green. The Mushrooms are close to each other. Everything is sprinkled with white lime powder. A 160cm - tall person can stand under some of them.