Well in rough chronological order:
1. United Kingdom - London and Stonehenges mostly
2. France - Paris and Niece
3. Japan - Kyoto, Tokyo, Osaka, Miyajima, and Hiroshima
4. Italy - Rome, Vatican, Venice, Florence
5. Mexico - Cabo San Lucas
6. Vietnam - Saigon and Dalat in the south, Hue in the Central and Hanoi up North mostly. I've been there twice, once on the standard tour, later on a more personal offroad tour seeing relatives and my dad's old classmates.
7. Singapore
Within the US, I've been to Yellowstone, Wyoming, drove through Arizona, New Mexico and Utah along the way, went to Las Vegas and Reno in Nevada several times and I've been to Palm Springs, San Diego including the zoo and Coronado, drove through the San Joaquin valley and Tejon Pass numerous times on the Interstate 5 along with Highway 101. Currently I'm residing in Philadelphia, Pennsylvania.