Here is my list:
US States
California (lived there for 3 years)
Oregon
Washington
Nevada
Arizona
Utah
Idaho
Montana
Wyoming
Colorado
New Mexico
Texas
Oklahoma
Nebraska
South Dakota
Iowa
Illinois
Arkansas
Tennessee
Georgia
North Carolina
South Carolina
Indiana
Ohio
Virginia
Maryland
New Jersey
New York
Delaware
Pennsylvania
Connecticut
Rhode Island
Massachusetts
New hampshire
Vermont
Maine
Hawaii
Alaska


OS
Australia (home country have visited or lived in all the states)
New Zealand
Malaysia
Thailand
Hong Kong
Singapore
England
Scotland
Japan
Canada
Marshall Islands

I love travelling and hope to all more to my list.