Directions to NYC Armory
Take the New Jersey Turnpike North, following signs to the George Washington Bridge. As you near the bridge (after passing the Meadowlands), follow signs that say "local" to Bridge. From the right lanes, take the lower level of the Bridge. Once at the bridge and past the $4.00 toll, get to the left lane and exit at 178th Street. (This will be in the right lane of the two lanes exiting the bridge on the left) Make a right at the first light onto Fort Washington. Go 10 blocks south. The Armory entrance is at 168th and Fort Washington.
Continue past the armory on Fort Washington for 1-2 blocks and parking for Columbia Hospital will be on your right. It is fine to use this parking.
Sometimes you can find parking spots by taking a right at the end of the hospital, go down the hill one block and park along the river either to the left or right. It can be quite a walk, though.
Getting back on GW Bridge:
On the street after the hospital, go right down the hill, take a right at the light, you will see signs for the George Washington Bridge from the right lane in the next .2 of a mile.