Beginning Jan. 29, the Museum of Science is giving visitors something they can sink their teeth into. Its latest temporary exhibit investigates an ancient Aztec currency, intercontinental slave trade and a modern $90 billion business as it traces the harvesting, transit, marketing and consumption of Forrest Gump’s favorite boxed good and the stuff of dentists’ nightmares. Chocolate: The Exhibition spans 5,000 square feet and 200 objects, allowing visitors to stroll through a rainforest with a life-size cacao tree replica, learn about a chili-spiked, frothy drink invented by the Mayans, relive the moment when the bitter morsel met its sugary match in 16th-century Spain and peek at today’s Ghanaian and Mexican farmers and their equatorial plantations. Perch on a bonbon (pictured above) to get a taste yourself—Chocolate is on display in the museum’s Blue Wing through May 7.