U.S. Route 20 (US 20) runs its easternmost 153 miles (246 km) in the U.S. state of Massachusetts. The highway crosses the state border from New Lebanon, New York, into Hancock, Massachusetts, and runs eastward to Boston, where it ends at State Route 2 in Kenmore Square. It spends the vast majority of its journey paralleling I-90 (the Massachusetts Turnpike), which has largely superseded US-20 for through travel. Still, US-20 directly serves many towns and local business areas which the Turnpike bypasses.