The term 'ARCH LOCATIONS' can be solved by the seven-letter word 'INSTEPS'. This term refers to the steps of an arch, which are the curved stones that form the top of an archway. An arch is a structure made up of wedge-shaped blocks that support a weight above it, such as a doorway or window. The steps of an arch are the stones that form the top of the arch and provide support for the weight above it.