Mosaic

A mosaic works at two scales. From a distance the pieces combine into an image; up close their colour, size and placement become visible. Stone, glass and other materials can create quite different surfaces, and wall mosaics need not behave visually like floors.

Start by asking where the mosaic was intended to be seen. A floor belongs to the movement of people through a room. A wall or vault may be experienced through changing light and from a particular angle. Material and setting are part of the meaning, not just the craftsmanship.

Many ancient mosaics now appear in museums, while a site may display a replica or a surviving portion. The distinction matters. Read the label to understand original location, conservation and what you are actually looking at.

Further explanation and context: smarthistory.org. The examples below are editorial connections, not a claim that every place has an identical history or form.