U.S. Route 206 (US 206) changes its name from "Lawrenceville-Princeton Road" to "Main Street", and then to "Lawrenceville-Trenton Road" in the center of Lawrenceville. The local historic district fronts along Main Street and US 206 stretch for more than two miles between Franklin Corner Road and an area slightly north of Fackler Road. Homes situated more than 250 feet from the road are excluded, however. One exception is the section of The Lawrenceville School known as the Circle and several other buildings in its vicinity, the oldest buildings on the campus. This area itself has been designated a National Historic Landmark.