The International Peace Garden is located in Dunseith, North Dakota. It straddles the United States and Canadian border, and is symbol of friendship between the two countries.
The 2,339-acre garden open in 1932, you can walk among 150,000 flowers, waterfalls, and lakes, along with viewing a large variety of North American Birds.
My favorite is the 18-foot floral clock in the Formal Garden, which is a duplicate of the one in Bern, Switzerland.
The best time to visit is spring and fall; summer can be hot and winters cold and snowy.
Be sure to check the Peace Garden webpage for the required documents, before visiting the Peace Garden