How do you get to Penn Station from 8 Stone Street?

Take the Downtown 2 or 3 express trains (of the 1-2-3, the red line) from 34th Street-Penn Station to Fulton Street. Transfer at Fulton Street to the Downtown 4 or 5 express trains (of the 4-5-6, the dark green line), 1 stop, to Bowling Green.

You'll exit the subway at Bowling Green park. This is a triangular park, with the base at the south end, and the top point facing north. The street named Bowling Green forms the south end (the base), and Broadway forms the west and east sides. There are essentially two Broadways here: one forming the west side of the triangle, and the other forming the east side of the triangle.

You'll exit the subway at the south end (at Bowling Green, the base of the triangle). Depending on which exit you use, you may exit at the south west corner, or the south east corner.

If you exit at the south west corner, then walk across to the south east corner. From the south east corner, walk 1 block south on Broadway to Stone Street. Turn left onto Stone Street, and walk 1/2 a block east on Stone Street to 8 Stone Street, between Broadway and Broad Street.