Take exit #278 (Routes 55-54; Apex). From either direction you will turn right onto Route 55 (towards Apex). Move the leftmost lane and left onto Hwy 54 at the first stoplight (it is the second stoplight if coming from I-40 West). There is a sizeable shopping center (Triangle Square) at this intersection. Once on 54, drive over the railroad tracks and look for a pair of four-story mirrored-glass buildings set back from the road on the right side. (Note: if you pass a Citgo gas station you have gone too far.) Turn into this entrance and park on the left side of the first (Alpha) building in the spaces marked for FHI Visitors. Map to FHI North Carolina: