Final answer:
The architectural masterpiece situated in the Acropolis associated with a temple to Athena is the Parthenon, a Greek temple dedicated to the goddess Athena. It is considered one of the pinnacles of classic Greek architecture.
Step-by-step explanation:
The architectural masterpiece situated in the Acropolis associated with a temple to Athena is the Parthenon. The Parthenon is a Greek temple built between 447 and 438 BCE and was dedicated to the goddess Athena, the patron of Athens. It is considered one of the pinnacles of classic Greek architecture, with its Ionic colonnades and ordered interior floor plan.