Olympia- Olympia was on of the most important sanctuaries in Greece. This place was also the birthplace of the first Olympic Games. An important temple in Olympia is the temple of Zeus. In the middle there is a 12 meter high statue of Zeus. 

Temple of Apollo at Didyma- It was built in 300 BC. 

It was made to have two sets of columns surrounding 

the inside called a dipteral. Only 3 columns are left there were thought to be 126. 

The temple of Athena Nike -  they built this around 300 B.C   The design of the temple was known as dipteral. Dipteral is two sets of columns surrounding the interior section. In the inner section there was a chamber that had a statue of Apollo.