The Temple of Jupiter Optimus Maximus is a sacred place in Camp Jupiter. This is where the Augur reads the will of the gods by reading the stuffing of stuffed animals. It is on Temple Hill, near New Rome.

There is a marble floor that is etched with many mosaics and Latin inscriptions. The gold ceiling is 60 feet above. The temple is open so that the wind can get in. In the center of the temple there is a marble alter and a statue of Jupiter holding the Master Bolt.