The King of Prussia Mall, located right outside of Philadelphia and owned by Simon Property Group, just opened a 155,000 square foot expansion, increasing the mall's footprint to 2.9 million square feet. The East Coast's largest shopping center offers visitors an "unparalleled shopping experience," featuring a state-of-the-art parking garage (with speed ramps and location technology) and Wi-Fi stations. Richard Sokolov, president and COO of Simon Property Group, says the expansion will drive both in-store and online purchases for retailers, giving customers a true omnichannel experience. In this video shot at the grand opening of the expanded mall, Sokolov explains the strategy behind the construction, what makes King of Prussia unique and what brands are opening flagships stores in the expansion.