One of Rome’s four papal basilicas, the Basilica di Santa Maria Maggiore is a majestic Catholic church built in the 4th century. Both the interior and exterior of the basilica are phenomenal. The floor is inlaid with coloured stones, the ceiling is covered with gold, and spectacular mosaics decorate the basilica’s upper walls. And when you first enter it, you will get an inexplicable feeling of calm, peace and tranquillity.