fragment of round roofing construction od silesian stadium in chorzow, silesia, poland. huge steel curved bars and brackets joined

structure construction stadium silesian steel concrete abstract infrastructure tribune famous competitive soccer field entertainment sport arena athletics industrial engineering landmark heritage legendary football connection pole column cantilever pilaster bracket round curve bar silesia sky blue architecture building metal modern city travel cable design urban high technology tourism white industry background clouds fragment roofing chorzow poland huge curved bars brackets joined ropes poland ropes