Antiquities are everywhere in the Italian capital. But incredibly, one of the most important collections was hidden away for decades: "It's like having 600-plus works of art drop out of the sky," enthused archeologist Darius Arya, who met correspondent Seth Doane at Rome's Capitoline Museum. "This figure right here is just out of the textbooks. I mean, the sort of thing that we've all studied but we've never seen."

It's the first time in about 70 years these pieces are on public display. Doane asked, "Is there any way to rank this collection?" "This is at the top," Arya laughed. "This is the greatest private collection of ancient Roman antiquity." It belongs to one of Rome's most powerful aristocratic families, the Torlonias, who over generations spent their banking fortune accruing art.