The image depicts the interior of a classroom or laboratory in Stara Zagora, Bulgaria

The image depicts the interior of a classroom or laboratory in Stara Zagora, Bulgaria. A full, articulated skeletal model of an equid, likely a horse, stands centrally on a rectangular light-colored wooden base. The skeleton is supported by three vertical black metal rods, with a blue marker visible on the upper spinal column and a red marker on the cervical vertebrae. One rear leg of the skeleton is bent at the hock and fetlock, with the hoof region resting near the floor. The room features a light gray tiled floor and a lower wall section with matching light gray square tiles. The upper walls are painted a plain light beige color. A large, off-white insulated pipe curves downwards from the upper left portion of the wall. On the far left, a white framed whiteboard with partial blue writing is visible. To its right, a white paper poster with Cyrillic text, titled "СТРОЕЖ НА ТОРСОВИТЕ НА КРАКА" (Structure of the Limbs/Legs), is affixed to the beige wall. In the bottom right corner, a section of a light wooden desk is visible, holding a white rectangular electronic device (possibly a power adapter) and a black cable with a USB-A connector, alongside a small stack of white papers. A small red and white decorative item is visible in the upper left corner, near the top of the whiteboard.