From Lambert Saint Louis International Airport:

1. Leave the airport on Natural Bridge Rd and take the ramp onto eastbound I-70
2. Merge right onto I-170 South via exit 238B
3. Go 8 miles, then exit onto I-64/Highway-40 eastbound via exit 1A
4. Go 5 miles then take Kingshighway North exit 36B
5. At first signals, turn right onto Barnes-Jewish Hospital Plaza
6. At T-intersection, turn right onto S Euclid Ave
7. Immediately turn left onto McKinley Ave
8. At T-intersection, turn left onto S. Taylor Ave
9. Travel one block, then turn left onto Scott Ave
10. Building is at corner of Scott and Taylor

From Illinois:

1. Enter Missouri via Poplar Street Bridge on westbound I-64/HWY-40
2. Go 4 miles, then exit onto S. Boyle Ave via exit 36C
3. Turn right onto S. Boyle Ave
4. Take next left onto Clayton Ave
5. Go 2 blocks, then turn right onto S. Taylor Ave
6. Travel 2 blocks, then turn left onto Scott Ave
7. Building is at corner of Scott and Taylor