Inside the largest home in America; a $150 million mega-mansion; luxury bunker.

The richest town in America; planning a mega-wedding.

An event planner for billionaires creates an upside-down birch forest for a top-secret celebration; a NYC apartment covered wall-to-wall in dead animals.

A gulf stream jet gets a multi-million dollar makeover; the owner of the only Lamborghini dealer in the country; an unusual NYC mega-mansion.

A small island where the super rich spend millions on classic cars; a super-secret NYC watch club.

Two women in Miami who have the keys to the city's priciest real estate; a small town in the Netherlands where the largest yachts in the world are built; an Aussie billionaire spending hundreds of millions to build a replica of the Titanic.