The Botuobinskaya diamond mine is located in Yakutia, a region in Siberia that's five times the size of France and has only a million inhabitants.
I toured a $29.5 million mansion on North Bay Road, a prestigious street in Miami Beach home to millionaires and Hollywood stars.
The richest zip code in the US is Fisher Island, a members-only island off the coast of Miami. I took a private shuttle boat to get a tour of the island.
Miami's Indian Creek Village is a tiny private island of just 34 homes that's been nicknamed "Billionaire Bunker." Here's what it looks like.