Graffiti Artists Leave Mammoth Mark On Boston

Over the past week a very public act of graffiti has been taking place in Boston’s Financial District. But it’s not illegal.

Os Gemeos, a pair of internationally known Brazilian street artists, has permission to paint a huge mural on the side of a ventilation building. It’s part of their first solo museum show in the United States, which opens Wednesday at the Institute of Contemporary Art.

-- Read Andrea's full piece on the Os Gemeos mural

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