Parasite's mansion was inspired by Lego blocks and steamed tofu

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Screenshot: Great Big Story
The mansion that serves as the primary setting for Bong Joon Ho’s Parasite is entirely believable as the kind of lavish home a wealthy family (and a number of guests, uninvited or not) might live in. It’s also not a real house, having been created from the ground up by production designer Lee Ha-jun. A Great Big Story interview with Lee looks into how the Park family’s home was designed, including details on its food-based architectural inspiration.