Final answer:
The area above the architrave and below the cornice in classical architecture is known as the frieze. It is part of the entablature and is often decorated with reliefs or paintings.
Step-by-step explanation:
The strip of wall located above the architrave and below the cornice in classical architecture is called the frieze. In Greek temple architecture, the frieze is part of the entablature and is often adorned with painted or sculpted decorations. This element can be seen in various classical orders such as Doric, where the frieze includes alternating panels of triglyphs and metopes, and in Ionic or Corinthian orders, which have a more continuous decoration. While capitals top the columns, pilasters serve as a decorative element against the wall, and the coffers might decorate the ceiling; the frieze uniquely occupies the space between the architrave and cornice as part of the entablature.