Pi was not the only irrational number used by the Egyptians when building the pyramids. They also used Phi in their design. This is one of the earliest examples of knowledge of phi, although some speculate Sumerian culture might have discovered Phi.
Phidias, the namesake of Phi, used the Golden Section in three well-known pieces. The Parthenon includes Phi, as does the statue of Athena in Athens, and the statue of Zeus in Olympiad.
The Cathedral of Notre Dame was built between 1163 and 1250 in Paris. It is debated whether or not it was intended to include the Golden Ratio, but the proportions are apparent.
In 1648, the Taj Mahal was built with the Golden Ratio.
The United Nations building in New York also shows evidence of the Golden Ratio. Also, in Toronto the CN Tower, the tallest freestanding structure in the world, contains Phi.
Phidias, the namesake of Phi, used the Golden Section in three well-known pieces. The Parthenon includes Phi, as does the statue of Athena in Athens, and the statue of Zeus in Olympiad.
The Cathedral of Notre Dame was built between 1163 and 1250 in Paris. It is debated whether or not it was intended to include the Golden Ratio, but the proportions are apparent.
In 1648, the Taj Mahal was built with the Golden Ratio.
The United Nations building in New York also shows evidence of the Golden Ratio. Also, in Toronto the CN Tower, the tallest freestanding structure in the world, contains Phi.