fyi, the Parthenon was specifically designed so it didn't have any straight lines, even when it seemed. It's part of its perfection as an architectural masterpiece and one of the seven wonders of the ancient world.
Yes, there was a reason that they went to war for Hellen of Troy. The reason were tons over tons of contracts, promises and agreements, that literally forced the whole mainland Greece to help Hellen's husband return her from Troy.