Question: In the 1990's, who built one of the three mills landmarks in California?
Related documents: [0]  [DOC] The Great Mall of the Bay Area (often simply called The Great Mall) is a large indoor outlet shopping mall in Milpitas, California built by Ford Motor Land Development and Petrie Dierman Kughn in 1994. It was acquired by Mills Corporation in 2003, and by the Simon Property Group in April 2007. The mall contains approximately 1.4 million square feet of gross leaseable area. [END] 
[1]  [DOC] Ontario Mills is the largest shopping mall and outlet mall in San Bernardino County, California. It is located in Ontario, California, and with 28 million annual visitors, it is one of the top shopping and tourist destinations in Southern California. It is one of three Mills landmarks in California that are now owned by Simon Property Group since April 2007. The Outlets at Orange, and The Great Mall are the others. Ontario Mills was designed by the architectural firm, F+A Architects. [END] 
Answer: 
Petrie Dierman Kughn in 1994.
Petrie Dierman Kughn in 1994.