4The Parthenon Is a Marvel of Engineering

The Parthenon, built between 447 and 432 BCE in Athens, is one of the most famous ancient structures in the world.

Dedicated to the goddess Athena, this temple is an architectural masterpiece, featuring optical illusions that make it appear perfectly symmetrical. The columns slightly bulge in the middle, an effect known as entasis, which corrects visual distortions and enhances the temple’s grandeur.