Another pyramid called Equinox International enlisted 250, 000 distributors before being shut down by regulators in April.

FORBES: Con.com

To the west of where the pyramid is today was another royal palace, the Tuileries, and it was a long-term ambition of the later French kings to link up both residences with two parallel wings, creating a great central courtyard.

BBC: Classic sights in the City of Light

Eleven air pillars now hold up the pyramid's roof, with another six, flatter, bespoke columns currently being manufactured to support the lower corners of the burial chamber.

BBC: Newport firm stabilises Egypt's earthquake-hit pyramid

With a flick of her wrist or a tilt of her comely head she could persuade 16 snarling and terrifyingly unpredictable Bengal tigers to jump through hoops or pile on top of one another to form a great orange and black pyramid.

ECONOMIST: New fiction

He made news in early 2013 by taking a position in Herbalife, the nutritional supplements seller, shortly after another prominent hedge fund manager, William Ackman, called the company a pyramid scheme.

FORBES: Daniel S. Loeb