Nested dolls, also known as Matryoshka dolls, are a set of wooden dolls of decreasing size placed one inside the other. Originating in Russia in the late 19th century, these dolls are often painted with colorful designs and traditional patterns. The largest doll typically opens to reveal a smaller doll inside, and this continues until the smallest doll, which is solid. The craftsmanship of nested dolls involves intricate hand-painting and careful carving. They are not only popular as toys but also as decorative items and collectibles. Each doll often represents a different character or theme, showcasing the rich cultural heritage of Russian art.