An advanced system of terracotta pipes and channels that allowed the city to thrive in the desert.
In the novel The Secret of the Nightingale Palace (and other works by Lucy Strange), the character Petra has a father referred to as "Pa" , who is a lighthouse keeper. 4. Petra, Jordan (Ancient City) petra-pa
She co-authored a protocol for studying mitochondrial ribosomes using quantitative density gradient analysis and mass spectrometry. An advanced system of terracotta pipes and channels
While not a "feature" named "Petra-pa," the ancient city of Petra itself is famous for specific archaeological features: petra-pa