Which of these world famous structures is the oldest? Parthenon burj khalifa colosseum the leaning tower of pisa

C. Colosseum

Explanation:

Charlemagne was known for making the empire redundant. Therefore, this resulted in the deteriorating of the relationship that existed in the east as well as the west. This then stayed up to 1054 when the Eastern Church was converted into a Greek orthodox church. It, however, happened after severing all its ties with the Roman Catholic to the Roman Empire.

Therefore, "colosseum" remains is among "oldest buildings" and a "symbol" of the "roman". With "history" of over "2000 history", it explains the "life of the empire of the Romanians".

Parthenon

Explanation:

The Parthenon is one of the most, if not the most recognizable and famous Ancient Greek building. Its construction has started in 447 BC and it was finished in 438, thus it was built for 9 years. Even after it was finished as a building, its decoration continued for 6 more years. The Parthenon was built by the Athenians, in the period when the city-state of Athens was at the peak of its power and it was the most powerful of the Ancient Greek city-states. This large and beautiful building was actually a temple. It was a temple of the patron of the city, the goddess Athena.