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 ...

It also had an Ionic frieze running around the top ... The kinds of optical refinements that we detect in the architecture of the Parthenon were far older than the fifth century.

A: The Parthenon in Athens is an ancient Greek ... Completed in 420 BC, it is made of white marble and features four columns ...

Its graceful Ionic columns and friezes capture the essence ... and more popular places, like the Parthenon, will be crowded certain times of the year. To learn more, you can read our full article ...