Ключевые слова: architecture, background, barrier tape, border, building, business, caution, city, closed, commercial, concept, conceptual, contagious, contemporary, coronavirus, covid19, crisis, danger, disease, elevator, empty, epidemic, escalator, indoor, information, inside, interior, issues, lift, message, modern, moving escalator, no people, outbreak, pandemic, precaution, problems, public, safety, sign, stair, staircase, stairs, stop, stop sign, symbol, tape, text, virus, warning,