Too many to list but I'll list some:
Portland, OR
Salem, OR
Eugene, OR
Medford, OR
Seattle, WA
Vancouver, WA
Kennewick, WA
Spokane, WA
Vancouver BC
Victoria BC
Outside Calgary
Edmonton
Billings, MT
Missoula, MT
Helena, MT
Through Boise, ID
Cour D Alene, ID
Idaho Falls, ID
Pocatello, ID
Salt Lake City, UT
Reno, NV
Las Vegas, NV
Flagstaff, AZ
Phoenix, AZ
San Fransisco, CA
LA
San Diego, CA
San Jose, CA
Oakland, CA
Sacramento, CA
Rapid City, SD
Through Casper, WY
Milwaukee, WI
Green Bay, WI
Madison, WI
Through Pittsburgh, PA
Though Chicago, IL and at the airport
Through Dallas, TX
San Antonio, TX
New Orleans, LA
Outside Denver, CO
Through Colorado Springs, CO
Through Minneapolis, MN
London, England
Paris, France
Edinburgh, Scotland
Bristol, England
Bath, England
Through Manchester
Through Newcastle
Durham, England
Palm Springs, CA
Indio, CA
Honolulu, HI
My parents traveled a lot so that's why I have been to all those places or though them or stayed the night in some of them.