From New York City:

Take I-78 W to US 222 S (Exit 54A). Merge onto US 422 E to the left.  Take the Penn Street exit. Turn left onto North Third Street. Cross Washington Street. Go 1/2 block and turn left into the GoggleWorks' parking lot.

From Philadelphia:

Take I-76 W. Take Exit 298 for the Morgantown Expressway / I 176 N. Merge onto US 422 W via Exit 11B to the left. Take the Penn Street exit. Turn left onto North Third Street. Cross Washington Street. Go 1/2 block and turn left into the GoggleWorks' parking lot.

From Lancaster:

Take US 222 / PA 272 / Oregon Pike to US 222 N / US 30 E.  Take US 222 N to US 422 E.  From US 422 E, take the Penn Street exit. Turn left onto North Third Street. Cross Washington Street. Go 1/2 block and turn left into the GoggleWorks' parking lot.

From Baltimore:

Take I 83 N to US 30 E. Take US 222 N. Merge onto US 422 E. Take US 222 N to US 422 E. From US 422 E, take the Penn Street exit. Turn left onto North Third Street. Cross Washington Street. Go 1/2 block and turn left into the GoggleWorks' parking lot.

From Washington, DC:

Take I 95 N to I 695 N. Take I 83 N to US 30 E. Take US 222 N. Merge onto US 422 E. Take US 222 N to US 422 E. From US 422 E, take the Penn Street exit. Turn left onto North Third Street. Cross Washington Street. Go 1/2 block and turn left into the GoggleWorks' parking lot.

directions from www.goggleworks.org.