Architectural designs changed greatly since the ancient times. Most famous architectures and sculptures today originated from the Greek and Roman civilizations. Moreover, some of the inventions from those civilizations are also being used today, such as the arch, which originated from Roman architecture, and the columns, which originated from the Greek architecture. Throughout history, these architectures and inventions have become the foundations for our buildings, churches, and much more.
The Greek architecture used mainly columns in most of their temples. The shape of the column was the most significant architectural factor. There were three types of columns, which were Doric, Ionic, and Corinthian. On these columns would lay a magnificent centerpiece, which displayed Greek gods or any sort of decorations. On the other hand, the Romans' architecture used mainly arches, which could hold much more pressure than a column. Romans also used columns in their buildings, but only in a decorative form. Arches were made of stones or bricks and placed on top of each other in a way that it can form an arch and hold weight upon itself. In most Roman architectures, such as the Colosseum, there would be a dome over the top to protect from rain, sun, or any other weather. The dome has a massive weight, so there has to be something to support it up, and this is where the job of the arch takes place. In these Greek and Roman buildings or temples, there would be sculptures of famous gods and warriors. The Greek sculptures were also different than the Romans'. The Roman sculptures had more "life" in it. In other words, it was more realistic. Greek sculptures looked stiff and didn't show much character as the Romans' sculptures did.
Therefore, in conclusion, Roman civilization seemed more developed than the Greeks'. They had many positives and also negatives, but they both were great ancient civilizations considering they were one of the earliest.