The architecture of ancient Greece and Rome, is representative of this era we refer to as “Classical architecture,” from ~800 BCE until ~500 AD. This era of building types emphasized the architectural column and pediment. Greek architecture was based chiefly on the post-and-beam system, in which marble and stone construction superseded timber construction. The column, a unit that was considered to be human in scale, was used as a module for all of a classical temple’s proportions.
Example: Acropolis, Greece (c. 450 BC)
First 10 image search results of classic architecture