Billboard 6x3 Rostov-on-Don, Обсерваторная, разд.напр.№21 к ЛеруаМерлен, Ашан

A billboard is a large-format board, usually 6×3 m in size, installed on a high support along busy highways and designed to attract the attention of motorists and passengers, with double-sided placement of static or digital posters and backlighting for night display.