Take route I-5 to exit 167 Mercer St. exit.
At the end of the off-ramp, turn left onto Fairview
At the fifth set of lights, turn right onto Denny Way.
Follow Denny Way approximately one mile, past Seattle Center.
Turn right onto First
At the third set of lights, turn left onto Mercer
Ten Mercer will be on the right halfway down the first block, number 10 (naturally!).