The Colosseum in Rome, Italy . . . built of concrete and stone. It is considered one of the greatest works of Roman architecture and Roman engineering. Isn't it Impressive.
The largest amphitheatre ever could hold between 50,000 and 80,000 spectators, having an average audience of some 65,000 it was used for gladiatorial contests and public spectacles such as mock sea battles, animal hunts, executions, re-enactments of famous battles, and dramas based on Classical mythology. The building ceased to be used for entertainment in the early medieval era. It was later reused for such purposes as housing, workshops, quarters for a religious order, a fortress, a quarry, and a Christian shrine.
The Colosseum today is now a major tourist attraction in Rome with thousands of tourists each year paying to view the interior arena, though entrance for citizens of the European Union is partially subsidised, and entrance is free for EU citizens under eighteen or over sixty-five years of age.
The Colosseum is an entirely free-standing structure. It derives its basic exterior and interior architecture from that of two Roman theatres back to back.
This is the famous Roman Colosseum for you. Thanks for Reading.