The Parthenon is a temple of Athena, built in the 5th century BC in the Acropolis. This is the most famous remaining construction of ancient Greece, and has been hailed as the achievement of Greek architecture. The decorative sculptures of the temple are made of white marble, considered to be the pinnacle of ancient Greek art. The Parthenon is a symbol of the end of ancient Greece and of Athenian democracy, and is regarded as one of the world's greatest cultural monuments.