I lived within 30 miles of the Canadian Border so infinity and beyond. If, however, you are talking about no longer on the North American continent I was 19 and went on a college sponsored tour of Portugal, Spain, Italy, France and England. Before I was 22 I also, on a government sponsored trip, went to Guam, So. Vietnam, Osaka, Japan and Tokyo. After that other than a three day cruise to the Bahama's I stayed on this Continent until I was 68 years old and I made a month long adventure touring Paris, Venice, Rome, Pompeii, Barcelona, Pisa, Tuscany, Florence and several other cities along the Mediterranean before cruising across trans-Atlantic back to home.