Scott Weaver has spent the last 35 years painstakingly constructing a replica of the city of San Francisco made of toothpicks! Not only that, but it is also a marble run, allowing ping-pong balls to take various tours through the city. His artwork will be on display in the Tinkering Studio at the Exploratorium until June 19th. For more information about the Exploratorium's Tinkering Studio, visit us at:
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