Answer is: Acropolis of Athens, including the Parthenon.
Parthenon (447–432 BC) is a temple, on the Athenian Acropolis, dedicated to the goddess Athena.
The golden ratio is a special number approximately equal to 1,618.
Pythagorean theorem states that square of the hypotenuse is equal to the sum of the squares of the other two sides.
