Sensation for sensation. Dried Vistula exposed treasures centuries ago and even millennia ago

Two skull fragments with horns of prehistoric steppe bison, a medieval sword, a wooden boat of which from the 15th or 16th century, remains of an 18th-century bridge, stone elements of Villa Regia... specified treasures in fresh days have revealed Vistula. It's been raining lately, and I think that ends the chances of another find... Until the next evidence low water level.