Micromosaics are created from tiny fragments of tesserae, generally made from glass or enamel, set to form small pictures. One common method includes melting glass, pulling it into thin rods or threads and then, after it cools, cutting it into tiny pieces that are then arranged on a copper or gold tray to create a scene, portrait or landscape. One square inch of micromosaic jewellery can have as many as 1,400 pieces of tesserae. Italy is given much of the credit as the origin nation for micromosaics. Wearing micromosaic jewellery became popular during the Grand Tour period (17th–19th century) when members of rich European families would travel around Europe. Italy was a very popular tourist spot as it had a long and prestigious history in arts and culture.