The fascination of antiquity! Fly with us above – and into – the Pantheon, one of the best-preserved buildings from the Roman era. This was once a place where the gods were worshipped. The secret of the dome’s circular opening has never yet been fully revealed. One theory – the structure served as a gigantic sundial. Have you ever visited the Pantheon in Rome? 📍 Rome, Italy 📸 instagram.com/giorgioteti/ | DW Travel

Completed around 125 CE, the Pantheon stands as one of the most technically advanced buildings of ancient Rome and the best-preserved large concrete structure of antiquity. Its unreinforced concrete dome—still the largest of its kind—culminates in a 9-meter-wide oculus that functions simultaneously as the building’s primary light source and an environmental regulator. Rain enters freely through the opening, but the interior geometry anticipates this condition: the marble floor is subtly cambered