Pantheon is Rome, the geographical area and building or building complex, in Rome and Campus Martius
A temple dedicated to all the gods. The word also means, simply: all the gods.
The pantheon is n ancient Roman Temple it was used for worship. What it does today is impress us at the wonderful architecture that people were capable of so long ago.
"TEMPLE OF ALL THE GODS" in Latin
it is famous because it is over 10 000 years old.