Author and historian Simon Sebag Montefiore presents a three-part series uncovering the central role played by religion in creating and maintaining the power of the city of Rome.

In the final episode of the series, art critic Alastair Sooke is back in Rome. Art critic and broadcaster Alastair Sooke sets out to show the art of the Romans.

Collins, who announced the news on "Good Morning America," posted a video on Instagram with the words: "There's no place like ...