Some of the most beautiful countries include Croatia, Spain, Costa Rica, Bali, Thailand, Singapore, Greece and Argentina. Others include Ireland, Australia, Latvia, Italy, Mexico, Brazil and Turkey. Most of the beautiful countries are those that are relatively small in area.
Parts of Canada are very beautiful. Banff Nat. Park is one of the most beautiful places I've ever seen! Parts of Scotland are also very beautiful. I've never been there but I've seen pictures. I want to go someday. I also agree with all those who said U.S.A.
The Dominican Republic has become one of the best Caribbean island destinations for retirement, and the North coast has a large population of expats from all over the world. http://www.dr-luxuryrealestate.com/
In my opinion the most beautiful is the country where you was born at list I have a great pleasure when visit my home country Ukraine I have created video about park Sofievka that was built in 18 century here is link : http://youtu.be/Jp9RbspbTWY I have more pictures on my website : http://www.ApartmentRentalsUman.com But if you like travel abroad there are many beautiful countrys I like England and Ireland , will be great to visit also Canada and US.