Going inside the largest home in America; $150 million U.S. mega-mansion; luxury underground bunker.

The richest town in the United States; planning a mega-wedding.

An event planner for billionaires creates an upside-down birch forest for a secret celebration. A New York City flat covered wall-to-wall in dead animals.

A Gulfstream jet gets a multi-million dollar makeover; the 20-something owner of the only Lamborghini dealership in the country; unusual New York City mega-mansion.

A small island where the super-rich spend millions on classic cars in one weekend; a super-secret New York City watch club.

Meeting two women in Miami who have the keys to the city's priciest real estate. Also, visting a small town in the Netherlands where the largest yachts in the world are built.