Eventually, gunpowder the Turks had stored in the Parthenon ignited, blowing out 28 columns, damaging several internal rooms, and killing up to 300 people. In the ensuing century and a half ...

Although the Parthenon might appear to be geometrically straight and built from interchangeable parts, it is not. The ancient Greeks worked subtle curves into the columns, architraves, floors ...

Parthenon sculpture ... Around all four sides of the building, above the columns and easily seen by everybody approaching, was a series of 92 square relief carvings, known as metopes.