North America
Colorado, too many to remember, but only a few of the 54 14'ers left.
Mt Hood, Mt Ranier
Mexico, Ixtacihuatl, Popocatepetl, Orazaba
South America
Aconcagua in Argentina (highest I have climbed almost 23,000 ft)
Cayambe, Cotopaxi, Chimborazo in Ecuador
European Alps
Mt Blanc du Tacul, Aguille du Midi (Cosmiques Arete route), Eiger
Himalayas
Attempted Cho Oyu, but got sick in the terrible storms and had to descend from about 20,000 ft.
Thanks for the welcome to the thread!
Awesome list. You should write a book about your experiences.