schengen visa (required for non US citizens) allows travel or transit through 26 European countries (Germany, Spain, France, Italy, Greece, Portugal, Poland .....). However the Schengen state consulates insist on travel health insurance with the following requirements before issuing the Schengen visa.
- Insurance providers should have an representative bureau in Europe
- Medical evacuation and repatriation emergency cover of at least EUR 30,000
- Insurance must be valid for duration of stay in the Schengen states