6) Steven Klar’s Penthouse at CitySpire ($100 million)

This penthouse is perched high over Manhattan. It stretches from the 73rd floor to the 75th floor of the CitySpire building. It overlooks Central Park and other major landmarks of New York City.

5) Estates and Lands of de Guigne ($100 million)

Located south of San Francisco in Hillsborough, this 16,000 sq ft home is one of the few in the area with as many as 47 acres. It has a grand ballroom, living room, library and pavilion. All these open to a pool courtyard.