To celebrate World Bee Day, McDonald’s has opened its smallest restaurant in the world. Dubbed the “McHive,” the minuscule building is located in Sweden, and it was handcrafted by a local woodworker. Featuring drive-through windows, outdoor dining areas, and tiny golden arches on the roof, the eatery—which is a fully functional beehive inside—heralds a new initiative by the fast-food chain to preserve pollinators.

Creative agency NORDDDB produced the tiny beehive. They say: “More franchisees around the country are joining the cause, and have also started replacing the grass around their restaurants with flowers and plants that are important for the well-being of wild bees.”

McDonald's commissioned the McHive to spread the word about its restaurants in Sweden, which are working to save the bees by installing rooftop hives. So far, five restaurants have installed beehives, and the company hopes to encourage more to follow suit.

“We have a lot of really devoted franchisees who contribute to our sustainability work, and it feels good that we can use our size to amplify such a great idea as beehives on the rooftops,” Christoffer Rönnblad, marketing director of McDonald’s Sweden, notes in a recent statement.

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