The Capuchin Crypt is a small space comprising several tiny chapels located beneath the church of Santa Maria della Concezione dei Cappuccini on the Via Veneto near Piazza Barberini in Rome, Italy. It contains the skeletal remains of 4,000 bodies believed to be Capuchin friars buried by their order. The Catholic order insists that the display is not meant to be macabre, but a silent reminder of the swift passage of life on Earth and our own mortality.
https://en.wikipedia.org/wiki/Capuchin_Crypt

The Borghese Gallery (Italian: Galleria Borghese) is an art gallery in Rome, Italy, housed in the former Villa Borghese Pinciana. It is a building that was from the first integral with its gardens, nowadays considered quite separately by tourists as the Villa Borghese gardens. The Galleria Borghese houses a substantial part of the Borghese collection of paintings, sculpture and antiquities, begun by Cardinal Scipione Borghese, the nephew of Pope Paul V (reign 1605–1621).

S. Maria Rotonda, or the **Pantheon;  Page 153 Bædeker Central Italy and Rome (1869)

St. Peter's Basilica (Latin: Basilica Sancti Petri; Italian: Basilica di San Pietro in Vaticano) is a Late Renaissance church located within Vatican City.

The **Sixtine Chapel: Page 235 Bædeker Central Italy and Rome (1869)

Location of the sculpture:
The Dying Gaul (in Italian: Galata Morente), better known as the Dying Galatian or the Dying Gladiator, is an ancient Roman marble copy of a lost Hellenistic sculpture that is thought to have been executed in bronze, which was commissioned some time between 230 BC and 220 BC by Attalus I of Pergamon to celebrate his victory over the Galatians in Anatolia.

The Papal Archbasilica of St. John Lateran (Italian: Arcibasilica Papale di San Giovanni in Laterano), commonly known as St. John Lateran's Archbasilica, St. John Lateran's Basilica, and just The Lateran Basilica, is the cathedral church of the Diocese of Rome and the official ecclesiastical seat of the Bishop of Rome, who is the Pope.