Greek temples are the most famous part of Greek architecture. They combine the Greek tradition of the megaron house with the Egyptian temple to make a new, simple, and elegant form.

Early Greek temple in wood
The first Greek temples, built around 800 BC, were made of wood, which was easier to build in than stone. They were long rectangular buildings with a porch all the way around them supported by columns made of tree trunks, like this, and thatched or tiledroofs. (Compare these to Chinese palaces of the Shang Dynasty, just a little earlier.)
(Notice the stone altar in front of the temple for sacrifices).