Final answer:
Bernini's Baldacchino is positioned over the altar area in St. Peter's Basilica, serving as a significant example of Baroque art and architecture.
Step-by-step explanation:
Bernini's Baldacchino is placed over the altar area inside the church. It is an iconic piece of Baroque art, standing 28.74 meters high and made of bronze, creating a focal point under the massive dome of St. Peter's Basilica in Vatican City. Bernini, acknowledged as one of the greatest architects of the Baroque period, designed the Baldacchino to bridge the immense scale of the basilica with the human scale. The Baldacchino forms a free-standing space around the altar, which is the liturgical focus of a church where the Eucharist is celebrated.