[ChiSoxRox]

With the help of a few Amtrak journeys, it's now quicker to list the ones I am missing:

Alabama
Connecticut
Florida
Georgia
Hawaii
Kentucky
Maine
Massachusetts
Michigan (not counting a DTW layover)
New Hampshire
New Mexico
Oklahoma
Rhode Island
South Carolina
Texas (not counting a DFW layover)
Vermont
West Virginia

My country list:

Belgium
France
India
Luxembourg
Mexico
Netherlands
Sweden
UK
USA

Layovers in China, Germany. Planning to add Germany, Italy, Switzerland, Vatican in February, then Finland and Russia in May.

(Still haven't been to Canada somehow.)