A rectangular, dark brown information sign is affixed to a light brown, heavily textured rock face in Madara, Bulgaria

A rectangular, dark brown information sign is affixed to a light brown, heavily textured rock face in Madara, Bulgaria. The sign displays text in white and yellow, providing definitions in Bulgarian and English. The English section, visible at the bottom, describes a "CREVICE" as "Crevice, which cuts the rock from base to top - ancient shortcut used for connecting fortress to cave." The upper right corner of the sign includes "С подкрепата на BILLA" (Supported by BILLA) with the BILLA logo, while the upper left features the logo and name of "РЕГИОНАЛЕН ИСТОРИЧЕСКИ МУЗЕЙ ШУМЕН" (Regional Historical Museum Shumen). The sign is mounted with visible metal brackets at its corners. The natural rock wall behind the sign exhibits horizontal striations and irregular surface variations, indicative of sandstone or similar geological formations. The scene is illuminated by direct sunlight, casting subtle shadows that highlight the rock's uneven texture.