High Quality Content by WIKIPEDIA articles! The remains of at least 230 amphitheatres have been found widely scattered areas of the Roman Empire. These are usually oval, and are not to be confused with the more common "ordinary" theatres, which are semicircular structures. There are, however, a number of buildings that have had a combined use as both theatre and amphitheatre, particularly in western Europe. Following is a list of Roman amphitheatre locations by country.