* Location: The Pantheon is located in Rome, Italy, while the Parthenon is located in Athens, Greece.

* Purpose: The Pantheon was built as a temple to all the gods, while the Parthenon was built as a temple to Athena, the goddess of war and wisdom.

* Architecture: The Pantheon is a circular building with a dome, while the Parthenon is a rectangular building with a pediment.

* Materials: The Pantheon is made of concrete, while the Parthenon is made of marble.

Additionally, the Pantheon was built in the 2nd century AD, while the Parthenon was built in the 5th century BC.

* Both buildings have survived for centuries and are now considered some of the most important pieces of ancient architecture in the world.