1924 – Wrigley Building, Chicago, Illinois
Architect: Graham, Anderson, Probst and White
William Wrigley, Jr., the successful chewing gum manufacturer, in search of an impressive main office for his company,
1930 – Merchandise Mart, Chicago, Illinois
Architect: Graham, Anderson, Probst and White
When opened in 1930, the Merchandise Mart or the Mart, was the largest building in the world with 4,000,000 square feet (372,000 m2) of floor space.
