Various surfaces - such as water - have been used for thousands of years to produce a reflection; from 6000 BC onwards, humans created reflections in more sophisticated ways, manufacturing mirrors from glass, polished stone and metals. Over time, glass became the most desirable material for mirrors, providing a smooth surface that was also durable. Since the 1800s, mirrors have been made from glass coated with a metal layer to increase reflectivity. Mirrors can be found across the modern home, either hanging on a wall or fixed into brackets or a stand. Mirrored glass is also a popular material for various types of furniture, including cabinets, wardrobes, coffee tables and vanity tables. As well as furniture, mirrored glass is also used for decorative items such as jewelry boxes and photo frames. Mirrors and mirrored items can vary significantly in price and quality, ranging from the elegant, handcrafted mirrors of Venice to the simple mirrors mass-produced by Ikea.