The Parthenon is often considered the finest example of Ancient Greek architecture because of its....

Size
Balance and Harmony of its parts.
Expense of the materials used.
Relationship between government and religion.

All of the above options are valid reasons for considering the Parthenon the finest example of Ancient Greek architecture. However, specifically for its architecture, the balance and harmony of its parts are often highlighted. The Parthenon is known for its precise proportions and the way different architectural elements, such as columns, pediments, and friezes, are arranged in a symmetrical and balanced manner. This sense of balance and harmony is a key characteristic of Ancient Greek architectural style and contributes to the Parthenon's reputation as a masterpiece.

The Parthenon is often considered the finest example of Ancient Greek architecture because of various factors, including:

1. Balance and Harmony of its parts: The Parthenon exemplifies the principles of classical Greek architecture, which emphasizes symmetry and proportion. Its design conveys a sense of balance and harmony through the precise alignment of columns, pediments, and friezes.

2. Size: The Parthenon is indeed an impressive structure in terms of its size. It is a large temple located on the Acropolis in Athens and was one of the largest temples built in ancient Greece. Its grand scale contributes to its significance in Greek architecture.

3. Expense of the materials used: The Parthenon was constructed using high-quality materials, such as pentelic marble. The expense and quality of the materials used in its construction further highlight its importance and the value ancient Greeks placed on this architectural masterpiece.

4. Relationship between government and religion: The Parthenon was built to honor the goddess Athena, who was considered the patron deity of Athens. Its construction was funded by the city-state of Athens, showcasing the close association between religion and government in ancient Greece. This relationship is significant in understanding the social and cultural context in which the Parthenon was built.

Overall, a combination of factors such as its balance and harmony, size, expense of materials, and the relationship between government and religion contribute to the Parthenon being considered the finest example of Ancient Greek architecture.