What is Henry Moore's most famous piece?

Opinions vary as to what Henry Moore's most famous piece is. Since the British artist's semi-abstract monumental bronze sculptures are often public works of art, many have become well known. Among them are Reclining Figure: Festival (1951), Harlow Family Group (1954-5), Helmet Head No. 4: Interior/Exterior (1963), The Arch (1963-69) and Mother and Child (1983). On 1stDibs, find a variety of Henry Moore art.