Conceptual artist Paul Kos has worked with many different mediums, including his latest -- cheese! The jury is out on whether the cheese is real or fake. What do you all think? Any guesses on the type of cheese?

Paul Kos, a conceptual artist in San Francisco, works in many different media and with many varying themes. But it's this amusing piece that caught my eye. Tunnel is simply a toy train chugging through the holes...of cheese.

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