Polaroid, 1265 Main St., Waltham

From 128/95 take Exit 26 (Rt.20 East). Go through the first set of lights. Just after the Texaco station on the left, at the blinking light, turn left and follow signs toward Route 117. At the first set of lights (intersection of Route 117) continue across to Polaroid. Building W3 is the first building to the right. The entrance is on the right side of the building.