If I were you, I would mapquest.
Ceremony and Reception are both at the Columbus Athenaeum:
32 N. 4th St, Columbus, OH 43215
Above is an outside view of the building.
The venue website is also helpful.Here's generic directions on how to get to the building:
FROM POINTS NORTH:
Take I-71 South to East Broad Street exit. Turn right onto East Broad and travel approximately 5 locks to North 4th Street. Turn right onto North 4th. The Athenaeum is on the first block, the 2nd building on the right. Front door is on 4th, near Lynn St.
OR
Take 315 South to I-670 East. Exit on 3rd St. Turn left onto East Broad Street. Turn left at first traffic light onto N. 4th St.
FROM POINTS EAST:
Take I-70 West to East Broad Street (40) exit. Turn left onto East Broad. Travel approximately 6 blocks and turn right onto N 4th St.
OR
Take I-670 West to 3rd St. Continue approximately 5 blocks and turn left onto East Broad. Turn left at first traffic light onto N. 4th St.
FROM POINTS WEST:
Take 315 South to 670 East. Take 3rd Street exit. Turn left onto Gay St and travel one block. The Athenaeum is the adjacent building to the right.
OR
Take I-70 East to I-71 North. Take East Broad St exit. Turn left onto East Broad Street and travel approximately 6 blocks. Turn right onto N 4th St. Athenaeum is the 2nd building on the right.
OR
Take I-70 East to I-670 East. Take East Broad St exit. Turn right onto East Broad and travel approximately 5 blocks. Turn right onto N 4th St. The Atheaenum is the 2nd building on the right.
FROM POINTS SOUTH:
Take I-71 North to East Broad St. Turn left onto East Broad St and travel approximately 5 blocks to N 4th St. The Athenaeum is the 2nd building on the right.