Regular readers know this national park is even stunning in the winter and one of the top 10 most visited as well. It’s beautifully crowned by the rugged peaks of the massive 12-peaked Teton Mountain Range and was created millions of years ago when a specific fault in the ground buckled. Some of the previously mentioned peaks tower over 12,000 feet into the air. Grand Teton, the highest one, is 13,770 feet high. Many species of birds, mammals, and fish live here.