Final answer:
The Parthenon is the oldest, completed in 432 BCE, followed by the Colosseum built between 70-80 CE, and then the Pantheon, completed around 125 CE.
Step-by-step explanation:
To put the three iconic buildings in order by date from oldest to most recent:
- The Parthenon in Athens, planned by architects Iktinos and Kallikrates, dates back to 432 BCE.
- The Colosseum, or the Flavian Amphitheater in Rome, was constructed between 70-80 CE.
- The Pantheon in Rome, known for its coffered concrete dome, was completed around 125 CE.
The three buildings in order by date from oldest to most recent are:
Parthenon: The Parthenon, planned by the famed architects Iktinos and Kallikrates, was built in 432 BCE in Athens, Greece.
Colosseum: The Colosseum, also known as the Flavian Amphitheater, was built from 70-80 CE in Rome, Italy.
Pantheon: The Pantheon, located in Rome, Italy, was constructed around 125 CE.