Throughout history, the world has been shaped by the rich and powerful. Their recognizable names and deeds tend to dominate the news, but there was a time when the insanely rich of the past didn't have the exposure they do in modern times. This series looks at these mysterious icons who shared one obsession. From exotic animals to billion-dollar parties to nine-figure palaces, this ride through the jaw-dropping decadence showcases who these rulers, tycoons, and visionaries were, and ultimately, who among them spent the most.